Sales of suvs (sport utility vehicles) in the united states (in millions) for the years 1990-1999 can be modeled by the quadratic equation shown below. y = 0.016x^2 + 0.124x + 0.787 here x=0 represents 1990, x=1 represents 1991, and so on. use the model to approximate sales in 1998. sales in 1998 were approximately __ million suvs.