Answer:
It makes it easier to understand math and helps you answer the problem of which math you are doing.
Step-by-step explanation:
They are just a method used to do math
The radius is 1.75 and the approximate circumference is 10.5 the pi circumference is 5.495 pi
You multiply both the numerator and the denominator by the number that you need to multiply the denominator by to equal 100. Then your numerator is the percent.
You substitute M for 3 and C for 6. So you get E = (3)(6)(2) which equals 36.