Theo buys 116 shares of Raxin Accounting at $15. 66 per share and 165 shares of Sanden Research Labs at $8. 57 per share. If Theo’s broker charges a commission of $11. 50 per ten shares bought or sold, how much does Theo pay in commission? a. $1,816. 56 b. $323. 15 c. $3,553. 76 d. $1,414. 5.