6 1/4 divided by 1 1/2

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.

Evaluate cos2θ for cosθ = square root of 3/2

What is r i 4.5+10r=-6.5 with work pls