Yes.
9m-3m=1+19
6m=20
m=20/6=10/3
0.5 is above because that .5 of a change is keeping the water from freezing because it is still slightly babouche freezing point.
-13 is below because the number is a negative so is below 0 anyway and is below the freezing point.
100 is above because the number 100 is higher than 0 so it’s above freezing point.
5.5 is above because it is a larger number than the freezing point so the water would not freeze yet at this temperature.
-2.25 is below because it’s a negative number.
I think that’s what you meant not 100% sure but that’s how I would do it :)
I’m not completely sure about the answers but i can say this: every month adrienne get 5 new dollars. so if it was at like 2 months and $10 (for example) the next month (month 3) she would have $15
F(x)-g(x)
=(-2x)+4-(-6x-7)
=(-2x)+4-(-6x)+7
=(-2x)+4+6x+7
=4x+11