Answer:
He didn’t do his math right
Step-by-step explanation:
The answer should be B. you combine the like terms. when it is a negative sign in front of the parenthesis, when removing the parenthesis, every term inside the parenthesis need to change sign, negative to positive, positive to negative.
The mean average difference is not that important, the mean is the only information you need to work out which one has the most words per page. I think the answer is C
