Chapter 11.3, Problem 10ES

The first, second, and third component of the “price vectorâ€� $\text{p}=〈\text{\$}479.99,\text{\$}799.99,\text{\$}1099.99〉$ denote the respective prices of 40-, 55-, and 60-inch flatscreen television sold by a store. Suppose that $s_1,s_2,\text{and}{s}_3$ denote, respectively, the number of each type of television sold by the store in a given month and that $\text{s}=〈s_1,s_2,s_3〉$ . What is an economic interpretation of the dot product $\text{p}\cdot \text{s?}$