At any electronic store, an air-conditioner marked $280 was on sale at $259. What was the percentage of discount for the air-conditioner?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Math it's appreciated. (picture provided)

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola