i) What is the profit impact if RBC pays a $15 sales commission per bike sold instead of paying salespersons flat salaries that currently total $6,000 per month, and increases unit sales from 500 to 575 bikes? j) If RBC has an opportunity to sell 150 bikes to a wholesaler without disturbing sales to other customers or fixed expenses, what price would it quote to the wholesaler if it wants to increase profits by $3,000?