Question

Hi, if it's possible to answer this now, Thank you so much. If you don't know the answer, that's ok :D

Answer 1

5.
`4^(9)`

Explanation:

There is a common ratio r between consecutive terms, that is

r = 20 ÷ 5 = 80 ÷ 20 = 320 ÷ 80 = 4

This indicates the sequence is geometric with n th term

`a_(n)` = a .
`r^(n-1)`

Here a = 5 and r = 4 , thus

`a_(10)` = 5.
`4^(9)`

Answer 2

5x4^10

Explanation:

Hope this helps have a nice day :)