City government has collected the following data on annual sales tax collections and new car registrations: annual sales tax collections (in millions) $1.02 $1.40 $1.90 $2.02 $1.80 $2.14 $2.30 new car registrations (in thousands) 9 12 16 16 15 17 20 a) the least-squares equation that shows the best relationship between sales tax (in millions) and car registrations (in thousands) is (round your responses to three decimal places and include a minus sign if necessary): modifyingabove y with caret = nothing + nothingx where modifyingabove y with caret = dependent variable and x = independent variable. b) using the least-squares regression equation, the estimated sales tax collection when the new number of registrations total is 23 comma 000 = $ nothing million (round your response to two decimal places). c) the coefficient of correlation for the least-squares regression = nothing (round your response to four decimal places). the coefficient of determination for the least-squares regression = nothing (round your response to four decimal places). enter your answer in each of the answer boxes.