1. Convert percent into decimal (it will help)

2. Convert Decimal to fraction
No, they did not eat the same amount. Barry ate less because his sandwich was smaller, so there would be a smaller half. Jonah ate more because his sandwich was bigger, so he would have eaten a bigger half.
To find the are of a square, we simply square the value of a side
so..

Area = 25 square units
The area of a circle is pi • radius^2
so
3.4^2 • 3.14 = 36.3
Good luck! The answer is C!
21 is greater cause it whole number