A Regression Analysis Between Sales (In $1000)and Advertising (In $100)resulted $\hat{y}$

Multiple Choice

A regression analysis between sales (in $1000) and advertising (in $100) resulted in the following least squares line: $\hat{y}$ = 75 +6x.This implies that if advertising is $800,then the predicted amount of sales (in dollars) is:

A) $4875.
B) $123,000.
C) $487,500.
D) $12,300.