Charlie's utility function is U(x_A, x_B)  x_Ax_B.If Charlie's income were $40, the price of apples were $5, and the price of bananas were $8, how many apples would there be in the best bundle that Charlie could afford?

A) 8
B) 11
C) 10
D) 15
E) 4

Utility Function

A mathematical representation of how different combinations of goods or services contribute to a consumer's satisfaction.

Budget Constraint

A limitation that represents the combination of goods and services that a consumer can purchase given their income and the prices of those goods and services.

Apples

Commonly refers to the edible fruit produced by an apple tree, used in various cuisines worldwide.