A5-ft piece of pvc pipe is cut into three pieces. the longest piece is 16 in. longer than twice the
smallest piece. the middle piece is 7 in. less than the longest piece. how long is each piece? round
your answers to the nearest inch, if necessary.

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.

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges