Write the equation: y = -0.1(x + 2)(x - 7) in standard form.

y = -0.1x² + 0.5x + 1.4

Step-by-step explanation:

y = -0.1(x + 2)(x - 7)

y = -0.1(x² - 7x + 2x - 14)

y = -0.1(x² - 5x - 14)

y = -0.1x² + 0.5x + 1.4

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