Answer:
3 
Step-by-step explanation:
A simple question, but I decided to answer.
Good Luck!!
Answer:
haha lo we arent helping you cheat
Step-by-step explanation:
Answer:
This is an arithmetic sequence with a common difference <em>d</em> of -5
Step-by-step explanation:
When you find out <em>d</em>, you realize the difference between the numbers to be -5. Since it is <em>d</em> and not common ratio <em>r</em>, it is an arithmetic sequence.