1.) Conrad earns a 7.5% commission on his sales of office supplies. Last month, he earned $836.50 in commissions. What were his total sales for the month (to the nearest whole cent)?
A.) $11,153.33 in total sales
B.) $10,976.67 in total sales
C.) $12,098.24 in total sales
D.) $12,754.19 in total sales
E.) None of these choices are correct.