Answer:
1,4,9,16...
Step-by-step explanation:
It does not have a common difference between each consecutive term, therefore it is not an arithmetic sequence.
Answer:
500 and 500
Step-by-step explanation:
One can solve this by first using order of operations, and then combining like terms.
First is parenthesis
9x + 2x(9) - 2(9x)
Now we do the multiplication
9x + 18x - 18x
Now we combine like terms
9x
That would be Nets 1, 4 and 5.