i have the answers of A , B , C

i need the answers of D and E

please!!!

6. A company produces and sells a product and fixed costs of the company are 8500000 Baisa and variable cost is RO. (35+K) per unit and sells the product at RO. (70+M) per unit. a. b. c. d. Find the total cost function. (5 marks) Find the total revenue function. (3 marks) Find the profit function and determine the profit when 1250 units are sold. (5 marks) How many units must be produced and sold to yield a profit of RO. 20000? (5 marks) How many units must be sold to break even? (5 marks) e