It will be 90 feet considering the water triangle as shown as the figure
Any number that is larger than -2.
For example y=0
-14 < 0-12
= -14 < -12
If your trying to find the unit rate or the scale of the map, you need to figure out how many kilometers are per centimeters. To get that you need to do 63 divided by 9, witch would get you 7. So to my ability, the answer would be 1 cm per 7 kilometers. Hopefully this answer helped you and I'm hoping its correct.
