please do both C and D!

this is more clear

c) Mercury Amalgamated, which was going to merge with the Hermes Hydrargyrum Holding Co. in 36 weeks, discovered that it needed to purchase photocopiers to take care of their needs until the merger. The company was going to choose one of two models. Model A costs $6000.00 per copier and $10.00 per day per copier to operate; the company would need 4 of them to meet its needs. Model B costs $9000.00 per copier but only $7.50 per copier per day to operate, the company would need only 3 of this model to meet its needs. Assuming that the company is trying to save money, which copier should it purchase? Hints What criterion will be used to find the answer? How does one find the total cost of each copier? How does one find the purchase cost of each copier? How does one find the operational cost of each copier? (note: the numerical contributions to the answer may vary based on an assumption that you have to make.) d) The hobbits Frodo, Sam, Merry, and Pippin were meeting at Frodo's house to play bridge. Although Sam lived the closest, he had to leave for Frodo's first because he had to walk. Merry and Pippin cach rode one of a pair of identical twin ponies presented to them by King Eomer of Rohan. The ponies could run 3 times faster than Sam could walk. By chance, all three of the hobbits arrived at the same time, when they discovered that the time Sam had taken to arrive at Frodo's was equal to the times taken by the other two hobbits combined. Sam lives 3 miles from Frodo's Merry lives 5 miles from Frodo's. Pippin took (pun intended) (read Tolkein's Lord of the Rings to understand the pun) 20 minutes to make the trip. How fast does Sam walk? Hints Have someone in the group draw a picture of what is happening. How does the distance that Merry and Pippin combined travel compare to the distance that Sam travels? How far does Pippin ride? How fast does Pippin ride? c) Mercury Amalgamated, which was going to merge with the Hermes Hydrargyrum Holding Co. in 36 weeks, discovered that it needed to purchase photocopiers to take care of their needs until the merger. The company was going to choose one of two models. Model A costs $6000.00 per copier and $10.00 per day per copier to operate; the company would need 4 of them to meet its needs. Model B costs $9000.00 per copier but only $7.50 per copier per day to operate; the company would need only 3 of this model to meet its needs. Assuming that the company is trying to save money, which copier should it purchase? Hints What criterion will be used to find the answer? How does one find the total cost of each copier? How does one find the purchase cost of each copier? How does one find the operational cost of each copier? (note: the numerical contributions to the answer may vary based on an assumption that you have to make.) d) The hobbits Frodo, Sam, Merry, and Pippin were meeting at Frodo's house to play bridge. Although Sam lived the closest, he had to leave for Frodo's first because he had to walk. Merry and Pippin each rode one of a pair of identical twin ponies presented to them by King Eomer of Rohan. The ponies could run 3 times faster than Sam could walk. By chance, all three of the hobbits arrived at the same time, when they discovered that the time Sam had taken to arrive at Frodo's was equal to the times taken by the other two hobbits combined. Sam lives 3 miles from Frodo's. Merry lives 5 miles from Frodo's. Pippin took (pun intended) (read Tolkein's Lord of the Rings to understand the pun) 20 minutes to make the trip. How fast does Sam walk? Hints Have someone in the group draw a picture of what is happening. How does the distance that Merry and Pippin combined travel compare to the distance that Sam travels? How far does Pippin ride? How fast does Pippin ride? c) Mercury Amalgamated, which was going to merge with the Hermes Hydrargyrum Holding Co. in 36 weeks, discovered that it needed to purchase photocopiers to take care of their needs until the merger. The company was going to choose one of two models. Model A costs $6000.00 per copier and $10.00 per day per copier to operate; the company would need 4 of them to meet its needs. Model B costs $9000.00 per copier but only $7.50 per copier per day to operate, the company would need only 3 of this model to meet its needs. Assuming that the company is trying to save money, which copier should it purchase? Hints What criterion will be used to find the answer? How does one find the total cost of each copier? How does one find the purchase cost of each copier? How does one find the operational cost of each copier? (note: the numerical contributions to the answer may vary based on an assumption that you have to make.) d) The hobbits Frodo, Sam, Merry, and Pippin were meeting at Frodo's house to play bridge. Although Sam lived the closest, he had to leave for Frodo's first because he had to walk. Merry and Pippin cach rode one of a pair of identical twin ponies presented to them by King Eomer of Rohan. The ponies could run 3 times faster than Sam could walk. By chance, all three of the hobbits arrived at the same time, when they discovered that the time Sam had taken to arrive at Frodo's was equal to the times taken by the other two hobbits combined. Sam lives 3 miles from Frodo's Merry lives 5 miles from Frodo's. Pippin took (pun intended) (read Tolkein's Lord of the Rings to understand the pun) 20 minutes to make the trip. How fast does Sam walk? Hints Have someone in the group draw a picture of what is happening. How does the distance that Merry and Pippin combined travel compare to the distance that Sam travels? How far does Pippin ride? How fast does Pippin ride? c) Mercury Amalgamated, which was going to merge with the Hermes Hydrargyrum Holding Co. in 36 weeks, discovered that it needed to purchase photocopiers to take care of their needs until the merger. The company was going to choose one of two models. Model A costs $6000.00 per copier and $10.00 per day per copier to operate; the company would need 4 of them to meet its needs. Model B costs $9000.00 per copier but only $7.50 per copier per day to operate; the company would need only 3 of this model to meet its needs. Assuming that the company is trying to save money, which copier should it purchase? Hints What criterion will be used to find the answer? How does one find the total cost of each copier? How does one find the purchase cost of each copier? How does one find the operational cost of each copier? (note: the numerical contributions to the answer may vary based on an assumption that you have to make.) d) The hobbits Frodo, Sam, Merry, and Pippin were meeting at Frodo's house to play bridge. Although Sam lived the closest, he had to leave for Frodo's first because he had to walk. Merry and Pippin each rode one of a pair of identical twin ponies presented to them by King Eomer of Rohan. The ponies could run 3 times faster than Sam could walk. By chance, all three of the hobbits arrived at the same time, when they discovered that the time Sam had taken to arrive at Frodo's was equal to the times taken by the other two hobbits combined. Sam lives 3 miles from Frodo's. Merry lives 5 miles from Frodo's. Pippin took (pun intended) (read Tolkein's Lord of the Rings to understand the pun) 20 minutes to make the trip. How fast does Sam walk? Hints Have someone in the group draw a picture of what is happening. How does the distance that Merry and Pippin combined travel compare to the distance that Sam travels? How far does Pippin ride? How fast does Pippin ride