x = total amount of gumballs
let's start subtracting the balls she's giving away


and we also know that after all that has been subtracted, she's only left with 5, so we can say that

Answer:
-2/3
Step-by-step explanation:
The slope of a line is found by
m= (y2-y1)/(x2-x1)
= (12-2)/(-10 -5)
= 10/-15
= -2/3
The amount of the discount is $7.59
2,8 is the Awnser if you can see it on the graph it goes 2 up 8 right