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Mrs. Kocur ordered shirts for the freshman, sophomore, and junior classes. She listed the number of shirts needed by size in
matrix A and the cost of the shirts in matrix B.
SML
F 32 40 26
A = S 29 35 23
J 26 30 24
Cost
S 15
B = M
L
18
22
To find the total cost, Mrs. Kocur multiplied A x B. Which could be the result?