X(1 1 -1;2 1 0;1 -1 1)=(1 -1 3;4 3 2;1 -2 5)

Andrea went to the store to buy sweater that was on sale for 40% off the original price it was then put on clearance an additional 25% off the sale price she also use a coupon that saved her an additional five dollars and j did not spend more than $7.60 for the sweater what are the possible values for the original price of the sweater?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

What term makes it inconsistent y=2x - 4