Solve these 4 Answers and find the number of X

5. x = -3

6. x = -2

7. x = 1/2

8. x = 9/5

Step-by-step explanation:

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