Answer:
81 pencils is the answer
x=-6
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(6-2)/(-6-(-6))
m=4/(-6+6)
m=4/0
undefined
12.5
first you do the one in the 40-15 then you add 50 the you divide by 6
