The formula for slope is (y-y1)/(x-x1).
1 = x
-1 = y
-2 = x2
8 = y2
You would plug those into the formula: (-1-(-2))/(-1-8) and that would equal to: 1/(-9).
Its 110 cuz it goes up 10% if it was 20% it would be 120
14x0.75=10.5
15-10.5=4.5
so she will get $4.50c
Hope this helps! :D
X=2 because first you have to combine like terms. Than you have to bring the Varible on one side. Finally you solve for the Varible and you get the answer2.