Question 249357
Mike's monthly salary: M<br>

Mike's monthly sales: S<br>

Mike's monthly commission: C=S*.05<br>

Mike's total monthly salary: T=M+C<br>

We are given M=800, S=2000 so:<br>

T=800+2000*.05<br>

T=800+100<br>

T=900 final answer<br>

Mike's total monthly salary in December was 900 dollars.  :)<br>