Write an algebraic expression that represents how many total cars there are on the toyota car lot if there are r rows and each row contains 37 cars

For each expression use a property to write an equivalent expression.

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.

What is the y-intercept of the line given by the equation