City government has collected the following data on annual sales tax collections and new car registrations: a) The least-squares regression equation that shows the best relationship between sales tax (in milions) and car registrations (in thousands) is (round your responses to three decimal places and include a minus sign if necessary): Where y^= Dependent Variable and x= Independent Variable. b) Using the teast-squares regression equation, the estimated soles tax collection when the new number of registrations total is 22,000=$ inilion (round your response to two decimal places). c) The coefficient of correiation for the least-squares regression = (round your response fo four decimal places). The coefficient of determination for the least-squares regression in (round your response to four decimal places)