A sales associate’s expense account for the first week of a certain month has the daily expenses (in dollars) shown in matrix A.

(a) The associate finds that expenses for the second week are 5% more (in each category) than for the first week. Find the expenses matrix for the second week (note that this is 1.05A).

(b) Find the associate’s expenses matrix for the third week if expenses for that week are 10% more (in each category) than they were in the first week.

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Meals Lodging Travel Other 88 160 400 20 Monday Tuesday 80 160 80 A = 112 280 180 Wednesday 80 Thursday Friday 60 280 40 80 400 20