The midpoint between -1/11 and 9/11

4/11

Step-by-step explanation:

-1/11+9/11=8/11

mid=(8/11)/2

=4/11

the answer is c

hope this !

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