Iam trying to find the equation of the following lines, i’m just having trouble putting them in slope-intercept form. slope= 2/5 through the point (-1,-6) through the points (-2,5) and (5,8)

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5

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