Total profit is defined as total revenue, r(x), minus total cost, c(x), and is given by the function p(x) = r(x) - c(x). given r(x) = 58x -0.4x^2and c(x) = 2x + 14, find each of the following. a) p(x) b) r(80), c(80), and p(80) p(x)= (type in descending powers of x.)