Evaluate -a when a is

(−−99)

a = -99

Step-by-step explanation:

(−−99) is equal to just 99 since a negative and a negative equals a positive.

If -a is equal to 99, a must equal -99.

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