2/20 is equivalent to 1/10 because 2/2 is equal to 1 and 20/2 is equal to 10.
First ask your self how many ounces are in 1 cup?
8 ounces
So to find how many ounces are in 8 cups, you have to multiply how many ounces in one cyp (8) by 8
8×8=64
64 ounces
It's 6.9. Just do the circumference divided by pi
