Answer:
x=60
Step-by-step explanation:
Answer:
0.698
Step-by-step explanation:
A
not sure
Answer:

Step-by-step explanation:
To find the area of the inner circle, we need to find its radius. Here, we can write the radius as 4 - x. Now, we can use the formula
:
A =
* 
We can expand the square:
A = 
Thus, the polynomial is
.
Hope this helps!
Answer:
1 1/2
Step-by-step explanation:
because when you divide 7.5 by 5 you get 1.5