What is a better buy. A 12-pack of Pokemon cards for $8.50
or
A 6-pack of Pokemon cards for $5.75

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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 equation results from adding the equations in this system? x+6y=9 and -x+2y=-15