Suppose that the price - demand equation and the cost function for the production of table saws are given, respectively, by 81,000 + 90x where x is the p = 300 50 and C(x) Y number wwwww of saws that can be sold at a price of $p per saw and C(x) is the total cost (in dollars) of producing x saws. Find the revenue function in terms of x.