Risk and Return Problem Sets, business and finance homework help

I am needing some help with financial problems that have to be done on an Excel Format and would appreciate, if possible showing showing step-by-step on how to arrive at these answers both in excel notation and using a formula approach as well to arrive at the answers in order to help me gain a better understanding of the problems. Here are the following problems:

Problem 7-21: Compute Bond Price Compute the price of a 3.8 percent coupon bond with 15 years left to maturity and a market interest rate of 6.8 percent. (Assume interest payments are semiannual.) Is this a discount or premium bond?

Problem 7-27: Yield to Maturity A 5.65 percent coupon bond with 18 years left to maturity is offered for sale at $1,035.25. What yield to maturity is the bond offering? (Assume interest payments are semiannual.)

Problem 8-19: Value a Constant Growth Stock Financial analysts forecast Safeco Corp.’s (SAF) growth rate for the future to be 8 percent. Safeco’s recent dividend was $0.88. What is the value of Safeco stock when the required return is 12 percent?

Problem 8-21: Expected Return Ecolap Inc. (ECL) recently paid a $0.46 dividend. The dividend is expected to grow at a 14.5 percent rate. At a current stock price of $44.12, what is the return shareholders are expecting?

Problem: 9-33: Risk, Return, and Their Relationship Consider the following annual returns of Estee Lauder and Lowe’s Companies:

Compute each stock’s average return, standard deviation, and coefficient of variation. Which stock appears better? Why?

Would appreciate any help I can receive on these difficult problems and would like to receive an answer back to these problems, if possible, in less than a day since it would help give me a chance to go through Excel and see how to format these problems showing both an excel notation and financial formulas when it comes to showing step-by-step problem setups on how I am arriving at those answers to answer the questions. Thanks!