Answer:

Step-by-step explanation:
The explicit formula for a geometric sequence:

- n-th term
- first term
- common ratio

We have

The common ratio:

<h2>It's not a geometric sequence.</h2>
If
then the common ratio is 
Put to the explicit formula:

Put
and solve for <em>n </em>:


Answer:
80
Step-by-step explanation:
500 to 900? = 80.
A = velocity / time
b) 40m/s
13m / 3s = 4.33 m/ss
Answer:
2116
Step-by-step explanation:
hope this helps :)