How to solve it

Problem 1-Calculate the holding -period return (HPR) of a given share based on the following information: Purchase price= SR 1100, selling price= SR 1050, and its dividends= SR 39. HPR=P1 - Po+D Po 2- If the holding period is three months, what would be the annualized return? Problem An investment provides a 3% return semi-annually, what is its effective annual rate? Problem What is he standard deviation of a portfolio that has 40% of its value invested in a risk-free asset and 60% of its value invested in a risky asset with a standard deviation of 30%? / 10