Answer:
d
Step-by-step explanation:
The sum to n terms of a geometric sequence is
=
where a is the first term and r the common ratio
Here a = 3 and r = 12 ÷ 3 = 4 , thus
=
= = 65536 - 1 = 65535 → d
Answer:
I got 147107
Step-by-step explanation:
If the subscriptions decrease by 8% each year then you would times 225000 by 0.08 then take the number you get from that and subtract it from 225000. And repeat until you get to the seventh year.
Answer: 252
Step-by-step explanation: 21x-12=252