Answer:
Step-by-step explanation:

Plot the points(0 ,-4) , (5 , -5) and (-5 , -3 ) in the graph and join the points.
Yo sup??
let the number of pencils and pens be 8x and 14x
x=2
therefore the number of pens and pencils are
16 pencils and 28 pens
Hope this helps
The train will have been traveling for 4 hours
train A=45,90,135, 180
train B=0,60,120,180
Given 2 angle : 45 and 90 (right angle)
==> 180-45-90 = 45