Which of the following is not a geometric sequence?
1-3,9,-27,81
-7,-5.8,-4.6,-3.4,-2.2
4
0 -100.-20.-4.-
5
2.8,6.72,16.128,38.7072

if this is really you s much. i only have 3 points left and i have 2 questions to ask

b.

step-by-step explanation:

i just know

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.