Solve it plzzz

Problem 3 For the cost function C = quarazwue (symbol meaning as in class) check if the following statements are true or false (with proof]: a. The inction exhibits decreasing average cost (with increasing output). b. The function is homogeneous of degree 1 in r and w. c. The elasticity of marginal cost with respect to r exceeds the elasticity with respect to w. d. The contingent demand for labour is l'(q,r,w) = 0.6q0'3r0'2w'0'4