Answer: -13
How to: Simplify the expression.
Answer:

Step-by-step explanation:
Given sequence: 
Therefore,
General form of an arithmetic sequence: 
(where a is the first term and d is the common difference)
To find the common difference, subtract a term from the next term:

Therefore,

To find the 6th term, input n = 6 into the equation:

Answer: n=0.4 or 2/5
Step-by-step explanation:
Wouldn’t that just be infinitely?