Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
1a.2
2a. 9
3a. 6000
1b. 9000
2b. 3000
3b. 9
Step-by-step explanation:
The correct answer is in fact $30.67
y¹⁵-20y¹⁴
I'm going to assume that your problem looks like this
which means we have
10 units
Answer:1292
just use the standart recursive for geometric sequence