Answer:
8
Step-by-step explanation:
= 
We make the denominator the same by multiplying
by 4.
= 
Thus, x = 8.
The area of the shaded sector is one-fourth of the area of the whole circle so:

area of shaded region

The area of the shaded region is 9pi units^2
P=-75 step-by-step solved it
I Would Say 3.75
You Might Want To Check It...But I Think That Is It
Answer:
1
Step-by-step explanation:
Since 12 / x = 4, you can safely assume that you would need to divide the 3 by x as well.
12 / 3 = 4
x = 3
3 / 3 = 1
Therefore, the answer is 1.