Explain.​

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.

Ten times the square of a non-zero number is eqaul to ninety times the number

What is the result of adding the system of equations? 2x+y=4 3x-y=6