If 13 of left which is frogs have 234 toes how many toes would you expect her whole collection to have. her collection is 31

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.