40 sneezes in 20 minutes as a unit rate

If jm equals 5x -8 and lm equals 2x -6 which expression represents jl

Need solving this second acceleration problem.

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.