Please include and explain steps clearly

Please explain answer with no excell calculations. Provide formulas and steps to calculate Beta's MBAS903 MAYLUNE 2017 Question 1 20 marks) Year StocX YMarket 2012 2013 2014 2015 2016 14% 19 -16 12% 10 12 19% 20 15 The above table provdes returns over time Asanne that the risk-free rate is 6% and the market nak premun is 5%. 1.1. What are the betas of Stoks X and Y? 1.2. What are the required rates of return on Slocks X and Y? la whatsthe required rate on a portolo consisting of 80% of Stock X and 20% of Slock Y? (4)