Question

What is the third term of the sequence? an=3 ⋅ 2n−1 Enter your answer in the box. a3=

Answer 1

an=3(2n-1) is that what you mean? or an=2*3n-1=6n-1. I am going to assume the first
so insert n=3 and you get a3=3(2*3-1)=3(6-1)=3*5=15.

Answer 2

The answer is a3=12 :) <3