How do you solve this​

Ineed with this. the figure is made up of a square and a rectangle. find the area of the shaded region.

What is the multiplicative rate of change of the exponential function shown on the graph?

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.