I Question Details Done The first table shows the number of reams of paper, packs of dry-erase markers, and boxes of staples requested by two teachers. The cost per item is given in the second table. Use matrix multiplication to show the total cost of the supplies for each teacher. 1 21. Use Matrices to solve each problem. Make Sure to Include Correct Units In Your Answers. Teacher Mr. Smith Supply Item Cost Paper Markers Staples Paper $15 6 4 5 Mr. Smith's Costs: Markers $4 Mrs. Wills 8 2 3 Staples $2.50 Mrs. Willis' Costs: