hello pls help me out thanks

A. Evaluate the following (10 points) 1. C (9,6) 2. C (7,6) 3. C (4,1) 4. C (5,2) 5. C (8,3) B. Find the mean of the following sets of data (10 points) 1. 2, 3, 8, 9, 17, 5 2. 90, 92, 98, 100, 80 3. 25, 30, 45, 20, 20, 4. 10, 12, 13, 17, 22, 24, 17 5. 16, 25, 44, 30, 30, 32, 38