A stockbroker earns a commission by a flat fee for each transaction as well as a fee per share. On a particular transaction, the
stockbroker sold 5,000 shares to a client at a rate of $0.01 per share. The cost of the transaction totaled $57.50. Which of the following equations describes the cost of this transaction in terms of shares sold? A.y = 0.01x B.y = 0.01x + 7.5 C.y = 0.01x + 4,999.425 D.y = 0.01x + 5,000