City government has collected the following data on annual sales tax collections and new car registrations: Annual Sales Tax Collections (in millions) New Car Registrations (in thousands) $0.98 11 $1.42 14 $1.88 15 $2.04 16 $1.80 15 $2.14 18 $2.32 21 a) The least-squares regression 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). = + X where y = 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 22,000 = $ response to two decimal places). million (round your c) The coefficient of correlation for the least-squares regression (round your response to four decimal places). The coefficient of determination for the least-squares regression (round your response to four decimal places)