A manufacturer is planning to sell a new product at the pric

A manufacturer is planning to sell a new product at the price of \"A\" dollars per unit and estimates that if \"x\" thousand dollars is spent on development and \"y\" thousand dollars on promotion, consumers will but approximately ((390y)/(y+3))+((160x)/(x+5)) units of the product. If manufacturing costs are $50 per unit, express profit in terms of x, y, and A.
(HINT: Profit = Revenue - Total Cost of manufacture, development, and promotion)

P=??