What is the 6th term of the geometric sequence 4, - 20, 100, ... ?

Let's calculate r of this G. P: (-20) / (4) = - 5 (100) / (-20) = - 5So r = - 5

The formula to find the nth term of a GP is;

a (n) = a (r) ⁿ⁻¹

a₆ = a (r) ⁶⁻¹

a₆ = 4 (-5) ⁵ = - 12500