Name For Problems 28-31, assume you own a manufacturing business and are thinking about purchasing a labor-saving device at a cost of $267,000. The device will last 12 years and save you $2.110 per month in labor costs (assume that the savings are realized at the end of the month). 28. If you buy the device, what is the total amount of labor costs you will save? Class ANSWERS 28. 29. 29. Does having the answer to Problem 28 make it possible for you to decide if you should buy the device? 30. Assuming that you need to earn 7.8% compounded monthly on your money, what is value of the device? 30. 31. Should you buy the device? 32. You have the chance to buy a promissory note in which you will receive 85 monthly payments of $880, starting a month from now. If you buy the note, what is the total amount you will receive? 31. 33. Refer to Problem 32. If you want to earn 8% compounded monthly. what price should you pay for the