Question

Scarlett bought an ant farm with 80 ants. From the following week forward, the ant population tripled every week. Let a(n) be the number of the ants in Scarlett’s farm in the nth week since she got it.

Is this arithmetic or geometric sequence!
a(n)=
How Mann ants after 8 weeks?

Answer 1

Answer: It is a geometric sequence

g(n) = 80•3^n-1

Explanation:

The first term is the initial and population size, which is 80 ants. The common ratio is the factor by which the ant population increases each week, which is 3.