20%, there are 100 people so you base each person as a percentage.
Answer:
5
Step-by-step explanation:
slope = (difference in y)/(difference in x)
subtract the y-coordinates: 5 - 0 = 5
subtract the x-coordinates in the same order: 3 - 2 = 1
Divide the difference in y by the difference in x.
slope = 5/1 = 5
This is a bit of a guess, but I think probably a) +4 and also a) -215
Answer:
0.02
Step-by-step explanation:

Hope this helps!