can you please help me. it's due tomorrow so I really need this done. can show how you got your answer because I don't understand the problems and how it's done.

Answer:
-6.8
Step-by-step explanation:
To find the mean you need to add up all numbers (or subtract if it’s negative) and divide by how many numbers there were. Example: there were 5 answers (days) so if you add/subtract all the days it’s -34 and divide it by 5 to get -6.8.