A 168-inch board is to be cut into three pieces, so that the second piece is three times the length of the first piece, and the third piece is eight times the length of the first piece. Find the length of each piece

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.