1. What is the arithmetic mean between 85 and 95? 2. What is the arithmetic mean between -12 and 4? 3. Insert 4 arithmetic means between 38 and 98. 4. Insert 5 arithmetic means between -15 and 3. 5. Which term of the sequence 13, 6, -1, ... is -85? 6. Which term of the sequence 9, 9.4, 9.8, ... is 17? Tour​