1+1+1+1+11+1+1+1+1+1+1+1+1-1-1-1
20?
Answer:
the answer is C
Step-by-step explanation:
The mean is 7.5
It is the average of the two values.
Answer:
(c) 31.2-60
Step-by-step explanation:
Given that
60 – 31.2 + ? = 0

This is the same as the expression in option (c) 31.2-60.
Hence, option (c) is correct.
This will be an educated guess but I think the answer would be $565000