Iknow this isn't math but if you know that answer can you tell me?

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y