The answer i would pick is 2
15 square feet because if it's a square room the 60/4 is 15
I would do 10x10-8x8 which is 36 which is 6 times it self
So A=6 in.
To start, you can use clue 2 because there is only one variable in it.
Solve for the value of the circle, by dividing both sides by 3.
Then you can plug that value into clue 1 to solve for the diamond.
Once you find the value for the diamond, you can plug both values, the diamond and the circle, into clue 3, to solve for the triangle.
A D C are the three that are true it might be wrong let me if i am