what is the 7th term of 8,-12,18,-27...
Nth term =F x R^(N - 1), where F =First term, R=Common ratio, N=Number of terms.
7th. term =8 x -1.5^(7 - 1)
=8 x -1.5^6
=8 x 11.390625
=91 1/8 =91.125
