If Johnny makes $20 in 2 hours, $50 in 4 hours, $70 in 6 hours and $100 in 8 hours, what is the unit rate he gets paid?

$240 20hours

Step-by-step explanation:

20+50+70+100 : 240

2h + 4h + 6h + 8h : 20hours

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