3. pls answer all

E l MINDTAP iework ' 1: i ' Video r M 5 i ' Management proposed the following regression model to predict sales at a fast-food outlet. 3; 2 I ' 3' = e + 1X|+ ax: + [3313 + 5 D i i where 5' p g | .1. = number of competitors within one mile 5-: M II population within one mile ( 1000s) 1 if drive-up window present x3 = Qotherwise y sales ($10005) 1:"; The following estimated regression equation was developed after 20 outlets were surveyed.- " y=10.9-4.5x1+6.6X2+15.QX3 a. Whatis the expected amount of sales attributable to the driveup window? 5 in thousands b. Predict sales for a store with two competitors, a population of 9,000 within one mile, and no driveup window. Estimate of sales 2 $ }in thousands r c. Predict sales for a store with one competitor, a population of 3,000 within one mile, and a drivesup window. Estimate of sales = $ in thousands