Answer:
The area of the remaining figure is 
Step-by-step explanation:
<u>Area of the Square Shape</u>
Given a square of side length x, the area is calculated by the formula:
It's given a square of side x is cut out of a larger square of side y. Please refer to the image below.
The area of the square of side length y is:
The shaded area of the remaining figure is the difference between both areas:
The area of the remaining figure is 
Hey there!
Basically it wants you to add 3 and 8 from each other, what ever the answer to that part, you multiply the result by 9
Here this is what i meant
Or you could do this method too!
They both give you the result of 
So, I am assuming your expression would look like this: 
Good luck on your assignment and enjoy your day!
~
8(5) - 4y = 39
40 - 4y = 39
-4y = -1, y = 1/4
Solution: y = 1/4
When Sam is 13 his mother will be 39 which is 3 times as old as he is. So Sam's mother will be 3 times as old as Sam will be in 11 years. (Your answer is 11 years.)
