which term of the progression 0.004, 0.02, 0.1, …. Is 12.5?

3

Find:

the 10^th term of the G.P.

4

Find the 4^th term from the end of the G.P.

6

Which term of the G.P. :

… is ?

6

Which term of the G.P. :

2, 2 √2,4, …. Is 128?