Respuesta :

Answer:

6.  No

7.  30.

Step-by-step 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.