Jill bought a 9-pound bag of cat food for her cats. She has used four-fifths of the bag. How many pounds has she used? A. 9 and four-fifths
B. 8 and four-fifths
C. 8 and three-fifths
D. 7 and one-fifth

D. 7 and one-fifth

Explanation:

9 - 4/5 = 7 1/5

9 divided by 5 = 1.8 each

1.8 should then be multiplied by 4 in 4/5. (1.8 = one of the 4's in the 4/5)

1.8 x 4 = 7.2

7.2 as a fraction would be 7 1/5. (seven and one-fifth)

answer: stupidity. they should wait till they can get reward money.

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.