Chapter 9.3, Problem 8SP

A farmer sells organic zucchini, yellow squash, and corn in two different roadside stands. Matrix $Q$ represents the number of pounds of each type of vegetable sold at each stand. Matrix $P$ gives the price per pound of each item. Find the product $QP$ and interpret the result.

$\begin{array}{l}\text{ Yellow}\\ \begin{array}{ccc}\text{ Zucchini}& \text{squash}& \text{ Corn}\end{array}\\ Q=\left[\begin{array}{ccc}42& 40& 84\\ 30& 36& 90\end{array}\right]\begin{array}{c}\text{Stand 1}\\ \text{Stand 2}\end{array}\end{array}$ $P=\left[\begin{array}{c}\text{\$}4.00\\ \text{\$}3.40\\ \text{\$}4.20\end{array}\right]\begin{array}{l}\text{Zucchini}\hfill \\ \text{Yellow squash}\hfill \\ \text{Corn}\hfill \end{array}$