What is the scale factor from A to B?

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.

How do you determine whether a relationship represented as as graph is linear or nonlinear

Sketch one cycle if the cosine function y=2cos2theta