Let's do this the easy way. 1 cup equals 8 oz's so it seems to me that you have 1 cup with 1 ounce to be added. Hope I helped you, but most of all hope I'm right. Sometimes the problem seems harder then it truly is but then there are times we get fooled...lol
According to Duncan Hines, an 18.25 oz box of cake mix equals approximately 2 1/4 cups of dry mix.
usually 1 box of cake mix makes 2 8in. rounds or one sheet of cake.
3cups
That is approximately 18 cups
3cups
5-7 cups, generally chocolate cake mixes yield more and white mixes yield less
Powdered sugar is a delicious topping for many foods including funnel cake. There are two cups of sugar in a one pound box.
There are 11 cups of batter in an 11x15 pan for a 2 inch layer. I would guess for an 11x13, maybe 10 cups?
That is about 1.62 cups.
What is a "box" - I have seen all kinds and sizes of "box"
Twelve 8oz cups
for an 14 in round cake pan, you only need 1 box
how many cups are in a one pound box of confectioners sugar?
That is 2 cups.
That is 6 cups.