You are going to paint a floor that is 27 ft. by 63 ft. one can of paint covers 23 yd² of space. how many cans of paint do you need?

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.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.