A recipe for fruit punch calls for
2 cups of pineapple juice for every
3 cups of orange juice. Write an
equivalent ratio to find how many
cups of pineapple juice should be
used with 12 cups of orange juice.

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.