U3P2 - Related Rates

A 10ft ladder is leaning against a wall and sliding towards the floor. The top of the ladder is sliding down the wall at a rate of 2ft/sec. How fast is the base of the ladder sliding away from the wall when the base of the ladder is 6ft from the wall?

The length of a rectangle is increasing at a rate of 44 inches per second while its width is decreasing at a rate of 33 inches per second. At what rate, in square inches per second, is the area of the rectangle changing when its length is 23 inches and its width is 18 inches?