Sarah dilutes grape juice for her two-year-old sister. She uses 14 cup of grape juice for every 23 cup of water. How much grape juice does Sarah use for each cup of water?

Two farmers pay a total rent of $140 for a pasture. the first farmer placed $4 oxen in the pasture, and the second farmer placed $30 sheep in the pasture. the farmers split the rent based on the proportion of the pasture eaten by their own animals that month. how much should the first farmer pay, if 1 ox eats as much as 10 sheep in a month?