Metlock, Inc. uses a periodic inventory system. Details for the inventory account for the month of January 2017 are as follows: Units Per unit price Total Balance, 1/1/2017 270 $5.0 $1350 Purchase, 1/15/2017 140 ..5 672 Purchase, 1/28/2017 140 ..5 700 An end of the month (1/31/2017) inventory showed that 220 units were on hand. How many units did the company sell during January 2017?

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