What is the value of the expression below when a = 5?
​
​ 7a - 4

31

Step-by-step explanation:

f(x) = y

f(-3) = -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