Please help me solve this word problem, please go through logic for how to do it so I can understand it. Thanks!
At a local store, the numbers of gallons of skim milk, 2% milk, and whole milk sold over the weekend are represented by a matrix A.
Skim 2% Whole
Friday 40 64 52
Saturday 60 82 76
Sunday 76 96 84
The selling prices per gallon and the profits per gallon for the three types of milk are represented by B.
Selling price Profit
Skim $3.45 $1.20
2% $3.65 $1.30
Whole $3.85 $1.45
a) Compute AB and interpret the result.
b) Find the store's total profit from milk sales for the weekend