a fruit punch recipe requires 2 quarts of orange juice to be mixed for every 5 quarts of apple juice. max has 9 quarts of orange juice.

how much apple juice does max need to make the punch if he wants to use all of his orange juice?

To make the punch, Max needs to use a ratio of 2 quarts of orange juice to 5 quarts of apple juice. If Max has 9 quarts of orange juice, then he needs to multiply that by the ratio to find out how much apple juice he needs.

9 quarts of orange juice * (5 quarts of apple juice / 2 quarts of orange juice) = 22.5 quarts of apple juice

Therefore, Max needs 22.5 quarts of apple juice to make the punch if he wants to use all of his orange juice.