Answer:
A
Step-by-step explanation:
Pi r^2 is the equation to solve any circle. R=5 in this case, so A is your answer.
Well, from the picture, we can say that 'A' isn't. We don't know about any of the others because we can't see them.
I’m sorry if you get this wrong but I’m guessing b
Answer:

Step-by-step explanation:

The value of y is 27. (first option.)
isolate the variable by dividing each side by factors that don't contain the variable.