The answer is z=-b/c-c/4+1/4
If you have 3 1/2 cups of something and you want to find how many 1/4 cups there are the you just need to divide 3 1/2 by 1/4

the answer is 14, there are 14 1/4 cups in 3 1/2 cups.
hope I helped :)
Answer:
radius= 7
Step-by-step explanation:
the radius is half of the diameter.
i hope this helps :)