Chapter 6.3, Problem 73PE

(a)

To determine

To calculate: The product of A and B that is, $AB$ where $A$ gives the number of each models sold during black Friday and $B$ gives the selling price and profit for each model.

$\begin{array}{l}\text{ Model}\\ \begin{array}{ccc}\text{A}& \text{ B}& \text{ C}\end{array}\\ A=\left[\begin{array}{ccc}84& 70& 32\\ 62& 48& 16\\ 70& 40& 12\end{array}\right]\begin{array}{c}\text{Friday}\\ \text{Saturday}\\ \text{Sunday}\end{array}\end{array}$ and $\begin{array}{l}\text{ Selling}\\ \begin{array}{cc}\text{Price}& \text{Profit}\end{array}\\ B=\left[\begin{array}{cc}\$499& \$200\\ \$599& \$240\\ \$629& \$280\end{array}\right]\begin{array}{c}\text{A}\\ \text{B}\\ \text{C}\end{array}\text{ Model}\end{array}$

(b)

To determine

To calculate: The total revenue for Sunday.

(c)

To determine

To calculate: The total profit for the three-day period for these three models.