Acharacteristic of a natural monopoly is that a. adding businesses in competition would increase cost to the consumer. b. the firm is supported by the consumer and voted into existence by the voters. c. there's no government intervention in the market. d. the firm is dedicated to the use of natural resources.

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