Answer:
Step-by-step explanation:
1 yes 2 no 3 no 4 yes 5 no
Answer:
7.A
8.D
Step-by-step explanation:
Answer:
This is an arithmetic sequence with a common difference <em>d</em> of -9
Step-by-step explanation:
When you find out <em>d</em>, you realize the difference between the numbers to be -9. Since it is <em>d</em> and not common ratio <em>r</em>, it is an arithmetic sequence.