with the equation of the slope for two points given, m=Y2-Y1/ X2-X1, you can obtain the slope , x1= 3, y1 = -1 , x2= -1, y2= 2
m = 2-(-1)/ -1-3 ⇒ m= 3/-4, m = -3/4, therefore the slope is - 3/4
518-68=450. . . . . . . . . 450/2 = 225 hamburgers
Answer:
In 25 hours the worker will be able to make 115 parts.
X= 10
Hope this helps and good luckkkk :)