203949 hope this helps :)
Circumference formula is 2(pi)r^2
so you need to find the radius(diameter/2) r=7
then multiply 7 x 3.14= 21.98
then multiply by 2 21.98 x 2= 43.96
answer is B 43.96
Given:
The equation is

To find:
The formula where x is the subject of the given formula.
Solution:
To make x the subject of the formula, we need to isolate the variable x.
We have,

Subtracting p from both sides, we get



Therefore, the required formula of x is
.
Five times a number less than one hundred.