Suppose that we are given the following matrices involving the costs of fruits at different stores, the amounts of fruit different types of people want, and the numbers of people of different types in different towns, Store A Store B Apple Orange Pear Apple Orange 15 20 Person B 4 Pear L 10 .151 Person A1.5 10 3 「 .10 .10 Person A Person B Town ! 「 1000 500 7 Town 220001000 (a) (b) Compute a matrix that tells how many of each fruit will be pur- (c) Compute a matrix that tells the total cost of everyone's fruit pur- Compute a matrix that tells how much each person's fruit purchases cost at each store. chased in each town. chases in town 1 and in town 2 when people use store A and when they use store B (a different number for each town and each store).