I need some clarification on how do it in mathematical form. I was able to use TI-83 calculator but I to know how to use it HP12c finance calculator.

1 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. N =15 x 2, I/YR =6.8/2 , PMT = 38/2, FV = 1000 PV = -720.63 Since this is less than $1,000, it is a discount bond. 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.) (LG76) N = 18 x 2, I/YR , PV = -1,035.25, PMT = 56.5/2, FV =1000 2.6714% 2 = 5.34% 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? (LG85) P0= 0.88/(.12-.08)= 0.88/0.04=$22 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? (LG85) First convert D0to D1: $0.46 (1 + 0.145) = $0.5267. 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? Estee Lauder Lowe's Companies Year 1 23.4% -6.0% Year 2 -26.0 16.1 Year 3 17.6 4.2 Year 4 49.9 48.0 Year 5 -16.8 -19.01 2 Estee Lauder Lowe's Companies Spreadsheet: Estee Lauder Lowe's Companies Average: E 9.62% 8.66% Std Dev 31.00% 25.51% CoV 3.22 2.95 Estee Lauder higher average return than Lowe's, but more risk standard deviation. On a risk return basis, Lowe's appears to be the better stock. It has less risk per unit of return such as coefficient of variation