Tom knows that in his school 10 out of every 85 students are left-handed. there are 391 students in toms school. how many students are left-handed

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.