Directions: Insert the indicated number of arithmetic means betweenthe given first and last terms of an arithmetic sequence.

1. 3 and 55 (3)

2. ⅓ and ¹³/3 (1)

3. 6 and 54 (3)

4. -5 and 40 (40)

5. a+b and 7a - 2b (2)​