please write the final answers with explanation of how we calculate the final answer

Karen just purchased a stock costing $33 on margin, paying $23 and borrowing the remainder from a brokerage rm at 15 percent annual interest. The stock pays an annual dividend of $2. If Karen sells the stock after one year at a price of $50, What is the return on the stock? a. 27.60 percent b. 82.61 percent c. 76.09 percent d. 58.70 percent e. none of the above The present margin requirement is that at least percent of an investor's invested funds must be paid in cash. a. 20 b. 30 c. 40 d. 50 e. none of the above