The second and fifth terms of a geometric progression (G.P) are 1 and ⅛ respectively. Find the:

Question

A, common ratio;
B, first term;
C, eighth term.

Answer 1

term(2) = ar = 1
term(5) = ar^4 = 1/8

divide ....
ar^4/(ar) = 1/8 / 1
r^3 = 1/8
r = 1/2

sub into ar = 1 to find a

after that, use your definitions for term(8)

Answer 2

Pls how did you get 1/2

Answer 3

Please I don't understand