3 A record club has found that the marginal profit, P'(x), in cents, is given by P'(x) = -0.0007x+0.31x + 50.7x for x=400, where x is the number of members currently enrolled in the club. Approximate the total profit when 240 6 members are enrolled by computing the sum P'(x) Ax with Ax = 40. i=1 Marginal profit (in cents) AP(x)=-0.0007x+0.31x+50.7x 26.000- 20.800- 15.600- 10.400- 5.200 The total profit when 240 members are enrolled is approximately $ (Round to the nearest cent as needed) INVV 0- 0 100 200 300 Number of members