Direction: For each given Geometric Sequence, Find the sum of the first
1. 25 terms of 3, 3, 3,...
2. 50 terms of 4, 4, 4, 4, ...
3. 100 terms of -6, 6, -6, 6, -6, 6, ...
4. 99 terms of -8,8,-8, 8, -8,...​