****Please do not copy and paste another answer, I have not found the correct answer yet from any of the other solutions.****

I just need C & D (i. & ii.) answered

With current facilities, approximately 10 percent of clownfish eggs and 5 percent of angelfish eggs can be successfully raised to maturity. Clownfish take approximately 35 weeks to grow to a salable size, while angelfish take 50 weeks. Angelfish also require more care than clownfish. Each week, angelfish need two complete water changes and 20 feedings, while clownfish need only one water change and 15 feedings. Each feeding costs $150 and each water change costs $1,000. Heating and lighting costs equal $400 per week of rearing, regardless of which type of fish is being raised. Fixed overhead costs for the year amount to $80,000. Percula can sell clownfish for $4 each and angelfish for $10 each.

a-1. Calculate the operating income from raising clownfish and angelfish.

a-2. Which species should Percula raise to earn the highest operating income for the year?

c. & d. Perculas manager is considering the following improvements, each of which will cost an additional $8,000 for the year. Due to resource limitations, only one can be implemented.

1. Purchasing a higher quality filter material that will significantly improve water conditions in the rearing tanks. The higher water quality will increase the survival rates to 12 percent for clownfish and 6 percent for angelfish. The need for water changes will also be reduced to one each week for angelfish. Due to the higher yields, feeding costs will increase to $160 each.

2. Installing newer, more efficient equipment that will reduce heating and lighting costs to $300 per week of rearing. The new equipment will promote more stable conditions, increasing the survival rates of clownfish to 10.5 percent and of angelfish to 5.5 percent. The slight change in survival rates is not expected to increase feeding costs.

i. Calculate the operating income from raising clownfish and angelfish with new filter material.

ii. Calculate the operating income from raising clownfish and angelfish with new heating and lighting.

iii. Which option do you think will be more beneficial and which fish species should be raised?

Calculate the operating income from raising clowr Which species should Percula raise to earn the highest operating income for the year i. Calculate the operating income from raising clownfish and angelfish with new filter material. ii. Calculate the operating income from raising clownfish and angelfish with new heating and lighting. iii. Which option do you think will be more beneficial and which fish species should be raised