C
All u have to do is add 23.5 to 23.5
Answer:

Step-by-step explanation:
The formula of a surface area of a cylinder:

r - radius
H - height
We have r = 40mm and H = 50mm. Substitute:

Depends how fast she run in mile average is 8 min a mile so if she is consistent it would take here 56 min to an hour
The first answer will be correct i took the test and i am in k12