Dang if not digit is used more than once then i go with 720 :)
He just switched sides of the variables and numbers. Instead if adding the opposite.
Answer:
A
Step-by-step explanation:
The square would be 100.
The semicircle you will use the formula πr^2/2.
That would mean you would take the 3.14x5^2/2.
(3.14x5x5)/2
(3.14x25)/2
78.5/2
=39.25
So the total area would be 139.25