I need theses worked out.) Kahlil bought 100 shares of Cisco for $24.00 per share on January 1st, 2008. He received a dividend of $5.

I need some help with my homework please. I need theses worked out.

#1.) Kahlil bought 100 shares of Cisco for $24.00 per share on January 1st, 2008. He received a dividend of $5.00 per share at the end of 2008 and sold his stock for $18.00 per share. What was Kahlil’s realized return? 

#2.) Assume that Ken has a choice between two deposit accounts. Account 1 has an annual percentage rate of  7.55 percent, but with interest compounded monthly. Account 2 has an annual percentage rate of 7.45 percent with interest compounded daily. Which account  provides the highest effective annual return?

#3.) You are planning to buy your first house. The cost of the house is$200,000, of which you will pay 20% as a down payment and finance the reminder. The mortgage on the 30-year loan with the monthly payment is 6% compounded monthly. What is the monthly payment amount on the loan  and how much of your first month’s payment will go towards principle?