How do i solve this using a mathematical operation?

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

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.

Consider the function f(x)=-5x+3 what is f(-2)