Solve the Problem $y=55.8+2.79 x$ Where $x$ Is the Cost of Advertising (In Thousands of Dollars) And Costs

Multiple Choice

Solve the problem.
-The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands) . By using linear regression, the following equation is obtained: $y=55.8+2.79 x$ where $x$ is the cost of advertising (in thousands of dollars) and $y$ is number of products sold (in thousands) . Use this equation to predict the number of products sold if the cost of advertising is $\$ 12,000$ .

A) 89.28
B) $33,535.8$
C) 95.98
D) 86.28