2*pi*10=62.83 is certainly your answer
The square root of 100 is 10. This is also a great number because it can be easily squared so you can have an even answer.
2^4-1 so 2•2•2•2=16 and 16-1 is 15
There are 721 freshman.
Make 35% a decimal, multiply by 2060
.35*2060=721
