Answer:
Arithmetic, -15
Step-by-step explanation:
Use an explicit equation.
a(n) = 5 - 2(n - 1)
a(n) = 5 - 2(10)
a(n) = 5 - 20
a(n) = -15
It should take 10 years
In 1 year, if it triples, it should be 15 (population), and so on.
15
45
135
405
1215
3645
10935
32805
98415
295245
draw two blocks on top of each other being added together
draw two blocks being added together...
31 r 3
i know
1,2,3,4,6,9,12,18,36
