Determine the number of real solutions: 1. y = -x? +2 x + 6
2. y = 2x² - 6x + 5
3. y = x² + 8x + 16

Here is my answer.. correct me if im wrong.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540