Answer:
Its D.
Step-by-step explanation:
All you have to do is divide 3 1/2 by 1/2.
1/7
you would divide 3 1/2 or 7/2 by 1/2
1/2 times 2/7 = 2/14 = 1/7
if you want to check then
7/2 times 1/7 = 7/14 which simplified is 1/2
