There are infinite solutions.
By observing the inequality, we can tell that the unknown number, n, is greater than the number 4.
1. A geometric sequence has a common ratio. You can find the ratio by dividing every number by its previous one. If it is consistent, then the series is geometric.
a: 8/1=8, 27/8=3.375
b: (-3/2)/3=-1/2, (3/4)/(-3/2)=-1/2
c. 7/4=1.75, 10/7=1.429
d. 20/25=0.8, 14/20=0.7
Choice b is the only one that has a common ratio, so it is a geometric series.
2. Every term is multiplied by 1/3, so the common ratio is 1/3. d is the answer.
I believe it would be <span>0.01028806584</span><span />
The difference is 
Explanation:
The expression is 
Removing the parenthesis, we have,
Factoring the terms 
and 
, we get,
Taking LCM, we get,
Simplifying the numerator, we get,
Subtracting the numerator, we have,
Hence, the difference is
The answer is c that’s the best answer
