hat$(y)=59\mathrm{.}2+83\mathrm{.}4x.$ Which of the following is true?

A$.$ A company with $2100$ employees could be predicted to have average revenue of about $$175$ million.

B$.$ For each additional employee, revenue on average will increase by $$83\mathrm{.}4.$

C$.$ This model should not be used to make predictions for companies with more than $82$ employees.

D$.$ For each additional employee, revenue on average will increase by $$59\mathrm{.}2$ thousand.