The answers checked for #1, #2, #4, and #5 are correct.
In #3, the constant factor is -3 . So the absolute value of
each term is 3 times the absolute value of the previous one,
AND the signs alternate.
A: ❤️❤️/❤️❤️❤️
B: ❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️❤️❤️❤️❤️❤️
C: ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
D: ❤️❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
E: ❤️❤️❤️❤️/❤️❤️❤️❤️❤️
F: ❤️❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️❤️❤️
G: ❤️❤️❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️
H: ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
❤️❤️❤️❤️❤️❤️❤️❤️/❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
Answer:
See below
Step-by-step explanation:
For SIMPLE interest :
1210 + 1210 * .09 * 7 = <u> $ 1972.30</u>
For ANNUAL COMPOUNDING of interest
1210 ( 1 + .09)^7 = <u>$ 2211.93</u>
<u />
I do not know which one you need....what are you studying presently?
I'm guessing the power series given is

which you can condense somewhat into

You should recognize this as a geometric series, which converges for

Answer:
d
Step-by-step explanation: