Answer all questions correctly

1) Evalute the integral. Check your results by differentiation. ( Remember the Constant of integration . ( 2 x / x* + 5 dx 3) Suppose that the marginal revenue for a productis given by MR = - 30 + 30 (2x + 1 ) 2 Where X is the number of units and revenue is in dollars. Find the total revenue, R (x). RX ) = 3) A new Fast- Food Firm predicts that the number of Franchises for Its products will grow at the rate dn = 3+ + 1 It Where t is the number of years, OC t 15. IF there is one Franchise (n= 1) at present (t= 0), how many franchises are predicted For 8 years From now ?? Franchises 4 ) Evalute the integral. ( Remember the Constant OF integration. ) Xeox3 . 5 Evalute the integral. ( Remember the consent of integration) 7 5X -dx