Answer:
The sum of 8 geometric sequence is 959780
Step-by-step explanation:
We are given
this sequence is geometric
-4 , 24 , -144
First term is -4
so, 
now, we can find common ratio

we can use formula

n=8
now, we can plug values

now, we can simplify it
and we get

U² + 6u - 27
u² + 9u - 3u - 27
(u - 3)(u + 9)
The 3oz is better than the 20
The answer to this problem would be 2.5.
The first one and the last one