Stephen bought 85 shares of united rotators at $6.34 each, 110 shares of dowc beverage co. at $13.13 apiece, and 133 shares of esti transport at $7.10 each. if stephen’s broker collects a commission of $12.50 for every ten shares bought or sold, how much did stephen spend in total, to the nearest dollar? a. $2,972 b. $3,338 c. $6,688 d. $2,438