Answer:
The sum is 32766.
Step-by-step explanation:
The 7 terms of the series are as follows:

namely: 6, 24, 96, 384, 1536, 6144, 24576
and their sum is 32766.
The answer is FG = GI
Both of the lines formed by these points equal the same distance, which is 3 units.
Simplify both sides:
x
—- = -9
4
now isolate the variable (x):
x= -9 • 4
x= -36
The common factor of the numbers is 15