Annual sales of new cars and light trucks in a certain country from 2015-2019 can be approximated by the following when the price (in constant 2021 dollars) was $p thousand. q = 0.15p + 13 million vehicles sold The actual average sale price in constant 2021 dollars was $31,100 in 2019. Estimate the projected shortage or surplus (in million of vehicles) at that price. There is an estimated