posted by Marissa .
1)Find the sixth term of the geometric sequence for which a1=5 and r=3
2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,...
3)Find four geometric means between 5 and 1215
4)Find the sum of the geometric series 128-64+32-_____to 8 terms
5)Find 6 on top of sigma notation n=1 on the bottom 5(-4)n-1 on the right side.