In fraction form the answer would be -2 4/5.
12.T
13.F
14.F
15.F.
16.???(where is 16?:O)
17.T
18.T
19.T
20.???(where is 20?)
21.5
22.5
Multiplying or dividing two related quantities by the same number is called scaling
The math club could rent the room for up to 8 hours. I have also attached a picture of the work in case you need it.
4 shirts can be worn with one pair of pants twice and the shoes can be paired with each outfit. So I am going to say 8 outfits.