am i correct with choices https://prnt.sc/s6nkm3 choices for the first one is diverges/converges and the second one https://prnt.sc/s72vlh
The first one: the series is not geometric: 16, 7.5, -1, -9.5 is arithmetic with a common difference of -8.5.
This series won't converge because its sum gets smaller than any limit who can try.
understood i really appreciate it!