My answer is isn't on the choices and I can't show you how I got it. My answer is in the attached files.
Answer:
A) 
Step-by-step explanation:
A) 
= 2y
B) 
Hence, is divisible by 
and the correct option is (A).
In the dimension of the frisbee given to be 10.2 inches in diameter, there are three significant figures. All, from 1, 0 and 2. Since these values are all significant, the last digit determines the greatest possible error allowed that is only in the tenths digit. The circumference of the frisbee is calculated through the equation,
C = πD
Substituting,
C = π(10.2 in) ≈ 32.0 in
