A system of linear equations is given by the tables. one of tablesb is represented by the equation y= -1/3x+7

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.

Can someone answer this question for me