Question $3$

If the base $b$ of a rectangle is decreasing at a rate of $2$ yards per hour while its height $h$ is increasing at a rate of $2$ yards per hour, which of the following must be true about the area A of the rectangle?

Your answer:

A is always increasing

A is always decreasing

$A$ is decreasing only when $Ab>hb$

$Ais$ decreasing only when $b>h$

A remains constant