Answer:
The sum of the geometric sequence is: -6665
Explanation:
By looking at the geometric sequence, we can note that each term is multiplied by -6.
So, the fourth term is going to be: -216
The fifth term is going to be: 1296
The sixth term is going to be: -7776
The sum of the geometric sequence is: 1 - 6 + 36 - 216 + 1296 - 7776 = -6665