The lowest elevation in long beach california is 7 feet below sea level the elevation of death valley is about 40 times lower than the elevation of long beach what is the approximate elevation of death valley

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.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.