Pls help with this math question !
thx !

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.

Aline passes through 3,7 and 6,9 what equation represents the line

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.