Let R(x), 000. and P(x) be. respectively, the revenue. cost. and prot. in dollars. from the production and sale of x itemS. lf R(x) = 4x and cm = 0.004%2 + 1.5x + 50, nd each of the following. a) PM b) Ruse). C(150). and P(150) c) R'lx). (2'00. and P'(x) d) R'(150). C'(150). and P"(150) E> a) Pm = D (Use integers o: decimals for any numbers in the expression.)