7.50 X 315 =2362.50 at the lower price
7.75 X 315 = 2441.25 at the higher price
subtract 2362.50 from 2441.25 you get 78.75
When x = 3 z = 57 57/3 = 19
19*8 = 152
So when X is equal to 8, Z is equal to 152.
Answer:
a) 47 people (count each leaf)
b) 66 - 1 = 65 (max - min)
c) 4 (occurs the most)
