Question

What is the term to term rule of the sequence in 5, 10, 20, 40, 80

Answer 1

Each variable is doubled so the rule would be x2

Answer 2

Answer:In each step the number is double that of the previous step.

Explanation:

In each step the number is double that of the previous step.

0 5

1 10

2 20

3 40

4 80

This can be written as 5*(2)^n, where n is the step number. e;g;, 5*2^0 = 5 for step 0. For step 4: 5*2^4 = 80.