When writing the equation keep in mind that 7 + x is said as a term that is squared so it has to be squared while it's still together; (7 + x)².
Answer: 114.24 in
Step-by-step explanation:
To solve this problem you must apply the following proccedure:
1. You can see two quarter circles. You know that the radius of the circle is 16 inches. Then, the lenght a each quarter of of the circumference is:

3. Therefore, the perimeter is:

The answer is the second option.
I think it is the 4th answer I learned about this in 8th grade and had a A in that class so I am 90% sure it is correct
1. D
2. A
3. A
Hope it helps!