This problem is an incomplete question... simply out of kindness, let's convert the volume of the rectangular container from cm^3 to cups.

we use the following conversion factors:

since 1m = 100cm:

1 m^3 = 100^3 cm^3 = 10^6 cm^3

we convert from m^3 to oz:

1m^3 = 33814 oz

and from oz to cups:

8oz = 1 cup

therefore:

13*7*6 cm^3 * (1m^3/10^6 cm^3) * (33814 oz/1m^3) * (1 cup/8oz) = 2.307 cups

the capacity of the container is therefore approximately 2.31 cups, so Winnie overfilled the container by a lot and perhaps that is what this question was asking...