Đồ thị hàm số y=\frac{x}{y} \sqrt{x} (9-x^2)/ x^2-3X-4 có bao nhiêu đường tiệm cận

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.