Suppose the risk free rate is 2.25%, the expected return of the market is 14.5%
	and the expected return of your investment (Asset A) is 10.9%.
1.	What is the beta of your investment?
2.	Assume you have $10,000 invested in Asset A and $20,000 invested
	in Asset B and $25,000 invested in Asset C. If Asset B has a beta of
	0.75 and Asset C has a beta of 0.9, what's your portfolio beta?