Question
Write a possible explicit rule for the nth term.
20, 40, 80, 160, 320
a sub n = 20(2)^n-1?
20, 40, 80, 160, 320
a sub n = 20(2)^n-1?
Answers
Damon
That seems to work.
Grace
You're doubling the number.e.g. 20 +20 =40