6
.
.....
........
....ncncj
Answer:
The answer is in the picture, good luck :)
Step-by-step explanation:
pretty sure it's 15 but if you used my answer and it was wrong srr
Tn=ar^(n-1)
r=-10/-5=2
a=-5
Tn=-5×(2)^(n-1)
Tn=-5•(2)^(n-1)
an=5•(2)^(n-1)
