Answer: first option.
Step-by-step explanation:
Find the common difference d of the arithmetic sequence:

Then the formula for the 101st term is the shown below:

Where:

Substitute values into the formula. Therefore, you obtain:

Answer:
B. Commutative
Step-by-step explanation:
He can do that because it's a sum
9514 1404 393
Answer:
-7/48
Step-by-step explanation:
Put the numbers in place of the corresponding variables and do the arithmetic.

Answer:
B. x = 2, y = 6
Step-by-step explanation:
