Name one way you can find the part, whole or percent when given the other two

Can you decompose the numbers 20,740,6,000

How do i do this activity, is appreciated

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.