The width of a rectangle is increasing at a rate of 9 inches

Last updated: 8/31/2023

The width of a rectangle is increasing at a rate of 9 inches per second and its length is increasing at the rate of 3 inches per second At what rate is the area of the rectangle increasing when its width is 7 inches and its length is 8 inches Hint Let W t and L t be the width and length respectively at time t The rate that the area of the rectangle is increasing is in s Simplify your answer