Step-by-step explanation:
Multiplication of fractions is easiest operation. Simply multiple numerator to numerator and denominator to denominator. For example,

Addition and subtraction requires that we find a common demoninator.
For example,

The common denominator is 12. So I need to muliply each fraction to get the right denominator. 4*3 = 12.

Then we add the numerators

Then we should reduce.

Division is a little trickier because we have to flip-flop the second term and then multiply. For example: 
88% = 88/100 = 22/25
22/25 x 350 = 7700/25 = 308
Therefore 308 students voted
Answer:
452.16
Step-by-step explanation:
the equation is A=nr^2
It belongs to the square root family. Your answer is B. Why the square root family? Because

can be written as

When you raise to 1/2 or 1/3 it is like saying the square root or the cube root.
Answer:
11.45
Step-by-step explanation:
the circumference is 36 so divide it by pie then rounded it to the nearest hundredths place