The quotient of a number and 12 is no more than three

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?