Suppose a computer manufacturer has the total cost function C(x) = 74x + 3600 (in dollars) and the total revenue function R(x) = 374x (in dollars). (a) What is the equation of the profit function P(x) (in dollars) for this commodity

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?