Neptune Company has developed a small inflatable toy that it is anxious to introduce to its customers. The company's Marketing Department estimates that demand for the new toy will range between 16,000 units and 36,000 units per month. The new toy will sell for $4.00 per unit. Enough capacity exists in the company's plant to produce 19,000 units of the toy each month. Variable expenses to manufacture and sell one unit would be $2.00, and incremental fixed expenses associated with the toy would total $27,000 per month. Neptune has also identified an outside supplier who could produce the toy for a price of $2.75 per unit plus a fixed fee of $20,000 per month for any production volume up to 21,000 units. For a production volume between 21,001 and 41,000 units the fixed fee would increase to a total of $40,000 per month. 4. Assume that Neptune plans to use all of its production capacity to produce the first 19,000 units that it sells and that it also commits to hiring the outside supplier to produce up to 17,000 additional units. a. What total unit sales would Neptune need to achieve in order to equal the profit earned in requirement 2a ? b. What total unit sales would Neptune need to achieve in order to attain a target profit of $13,500 per month? c. How much profit will Neptune earn if it sells 36,000 units per month? d. How much profit will Neptune earn if it sells 36,000 units per month and agrees to pay its marketing manager a bonus of 20 cents for each unit sold above the break-even point from requirement 3