SOLUTION: I can't tell which sequence I should be using in order to solve this equation... You need to find the 11th term. -10, 20, -40, 80

Question 472774: I can't tell which sequence I should be using in order to solve this equation...
You need to find the 11th term.
-10, 20, -40, 80
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
-10, 20, -40, 80 a geometric progression

Formula
the 11th term