Question

1. Is the sequence arithmetic & common difference
2. Find missing term

Answer 1

6. No

7. 30.

Explanation:

6.

Not arithmetic because there isn't a common difference . For example 211- = 7 and 42 - 21 = 21.

7.

36 - 24 = 12.

The common difference is 1/2 * 12 = 6.

So the second term = 24 + 6 = 30.