Answer:
[tex]\$84,000[/tex]
Step-by-step explanation:
Remember that
[tex]6\%=6/100=0.06[/tex]
we know that
The amount the salesman would earn in a year must be equal to the base salary multiplied by 12 (number of months in a year) plus 6% of the amount sold in merchandise in a year
so
[tex]4,000(12)+0.06(600,000)=\$84,000[/tex]