3. Find (5x+x) dx b.6 c.7 4. 18 A = 120 then what is the determinant of A? -3 1-413 I -4 d. -2 e. None 5. What is the total revenue (TR) function for the following marginal revenue function MR=15-40 a. 150 b. 4 c. -40 + c d. 150-20² + c None 6. If Matrix A is of order px k and Matrix B is of order m xn, then what is the order of the Matrix AB given that k m? b.pxm kxm d. kxn apxn epxk 7. Given the demand function Q=100-2P+ PA+ 0.1Y where P=10.P,= 12 and Y= 1000, what is the cross-price elasticity of demand? 40.0625 b. 0.1 None 4.0.9 d. 1 8. Find the producer's surplus at Q = 5 if the supply function is P = 7+4Q. a 27 50 4.5 None b. 2 -10 c. 85 d. 135 e. None J. (ver sizde. MR = 15-4Q
