Answer:
9^-3/9^12
Step-by-step explanation:
3^(-2) = 1/(3^2) = 1/(3*3) = 1/9
The rule used here is x^(-y) = 1/(x^y) to make the exponent positive.
3^2 turns into 3*3 because the exponent 2 tells us how many copies of the base '3' to multiply out.
7 x 3 = 21 so it is 21 ft cm your welcome
8 quarts is equal to 32 cups :)