On a recent car trip, raymond drive x miles on day one, on day two , he drove 170 miles more than he did on day one. how many miles, in terms of x, did raymond drive for both days combined

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.