Answer:
-1
Step-by-step explanation:
The common difference is the constant amount of change between the numbers in an arithmetic sequence.
To find the common difference, you take the last term and subtract it by the previous term.

Answer:
the best equation would be A-99=n
Step-by-step explanation:
Answer:
132 feet
Step-by-step explanation:
22+60+70
Answer:
-12.5 i think
Step-by-step explanation: