Need only #5 done (Show work) will give brainliest

The distance between K and M = 35 (from the question)

(Reason: All individual distances in a line i.e. and sum up to give the distance ).

Collecting like terms:

, (Reason: All similar terms in an expression can be computed with one another i.e. added or subtracted).

Dividing by the variable's coefficient:

, (Reason: The coefficient is a similar factor to both terms in both sides, diving 40 by 4 gives you 10, hence the statement has been proven).

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