6. (7 points) Assume that a consumer's utility function is of the Cobb-Douglas fonnat: U = mow-6, where U is the level of utility this consumer receives from consuming goods at and y. Derive the consumption levels of good it and good y that maximize this consumer's utility, while taking into consideration the consumer's budget constraint. Px: 4 , Py: 10, and I : 300 are prices and income, respectively. [You don 't have to discuss the second-order conditions for the problem. ]