Final answer:
The profit-maximizing output is 8 units, and the price at this output is 74.6 dollars per unit. The resulting profit is 596.8 dollars.
Step-by-step explanation:
To maximize profit, we need to find the output level (q) at which marginal revenue (MR) equals marginal cost (MC). In this case, MR = MC is represented by the demand function and cost function.
So, we can set 75-0.05q = 300+25q.
Solving this equation, we find q = 8.
To find the price at which this occurs, we can substitute the value of q into the demand function.
So, p = 75-0.05(8) = 75-0.4 = 74.6 dollars per unit.
The profit can be calculated by multiplying the profit-maximizing quantity (8 units) by the profit-maximizing price (74.6 dollars per unit).
So, the profit is 8 * 74.6 = 596.8 dollars.