The square root of 9 is 3
Answer:

Step-by-step explanation:
The formula for the nth term of a geometric sequence is
aₙ = a₁rⁿ⁻¹
In your geometric sequence, a₁ = 4 and a₁₃ = 16 384.

Check:

It checks.
Yes. in math you will get to a point where you will have to use ratios to do rates they kind of the same thing.