1/3 of 12= 2/3 of? what's the answer

And

1/2 of 12=1/4 of?

1/3 of 90=2/3 of?

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long. calculate how many feet of fencing he will need to surround the entire lot.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Acircle has a circumference of 28.36 units what is the diameter of the circle