You use a juice mix to make orange juice. you combine 12 ounces of the mix with 36 ounces of water. which is a unit rate that describes your juice?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.