PLS HELP unit 2 exam math part 2/2

6) Dividing the following integers:
-256 ÷ (-16)

7) Find the average:
Kohda recorded the low temperature each day for 1 week and recorded his results in this table.
Sun Mon Tue Wed Thur Fri Sat
-5 -8 -6 2 7 -8 -3

8) Dividing the following decimals.
-0.84 ÷ (-0.12) =

9) Dividing the fractions.
Input your answer as a simplified fraction.

5/6 div (-2/3)