Please help with question 5 and 6

QUESTION 5 Suppose that a consumer's utility is given by , in which case the marginal utilities will be given by MU = 1 u (x , y ) = 2x 3 + + 3y 3 and MU = of substitution? 2x , respectively. What is the marginal rate + 3p 3 WIN O 2 2x 3 + 3 p 3 w /+ 3x MRS= w / P 2v O 2x MRS = 3v O w | + MRS= w | + 2x O 2v MRS = w w/ QUESTION 6 Suppose the budget set and income level is given as in Question 1. Suppose that a consumer's utility is given by u (x;y) = (2x 3 + 3)- 3 (round your answers to the nearest tenth. That is, 6.38 should be 6.4) What is the optimal consumption bundle for the consumer? X=