Answer: You have 34 left.
Step-by-step explanation:
69 - 15 = 54
54 - 20 = 34
13.
(a)

for x = 2:

for x = 5

(b)
The graph is:
(c)
Using the graph:



Using the quadratic formula:
1813 x

= 326.34
18% of 1813 people is 326.34 people
333 is a reasonable estimate.