Find the base in the following problem.

10% of __is 81.
8.1
81
810
8100

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

Nikolas calculated the volume of the prism. his work is shown below.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?