How do i do this i'm confused how to get started?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

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.

Write and solve a real word problem that involves determining distance on a coordinate plane