Rob Polanski is a tractor salesman. last week his total sales amounted to 38,642.00 and he received 2,704.94 in commission.Question: what is his rate of commission.=> 38 642 dollars = total sales he amounted.=> 2 704.94 dollars = total commision he receivedLet's find the unit rate base on the given data above.=2 704.94 / 38 642 = 0.07=> 0.07 * 100% = 7%Thus, Rob received a 7% commision rate depending on the amount of his sales.