Answer:
Sophia collected 4 bins of glass bottles. To find out how many bins Annie collected, we need to multiply Sophia's bins by 3 1/4.
To calculate 3 1/4 times 4, we can convert 3 1/4 to an improper fraction. The improper fraction representation of 3 1/4 is (4*3 + 1)/4, which equals 13/4.
Now, we can multiply Sophia's 4 bins by 13/4:
4 * 13/4 = (4/1) * (13/4) = (4 * 13) / (1 * 4) = 52/4 = 13.
Therefore, Annie collected 13 bins of glass bottles, which is 3 1/4 times as many as Sophia.
