Production costs per leaf blower total $20, which consists of $16 in variable production costs and $4 in fixed production costs (based on the 10,000 units produced). Fifteen percent of total selling and administrative expenses are variable. Compute net income under variable costing.

Andy purchases only two goods, apples (a) and kumquats (k). he has an income of $125 and can buy apples at $5 per pound and kumquats at $5 per pound. his utility function is u(a, k) = 6a + 2k. what is his marginal utility for apples and his marginal utility for kumquats? andy's marginal utility for apples (mu subscript a) is mu subscript aequals 6 and his marginal utility for kumquats (mu subscript k) is