Can someone pls help me

Why do interests rates on loans to be lower in a weak economy than in a strong one

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.

Which point is a solution to y s 4x + 5?