Part 1) You have a portfolio of two securities, A and B. A has a beta of 0.4 and B has a beta of 4.3. You have $90 invested in A and $70 invested in B. What is the beta of your portfolio?

Part 2) You have a portfolio of two securities, A and B. A has a beta of 0.4 and B has a beta of 4.3. You have $90 invested in A and $70 invested in B. What is the beta of your portfolio?

Part 3) Consider gross earnings of $74,000.

The standard deduction is $12.000 and itemized

deduction is $8,000.

Social security tax rate is 6.2%; Medicare tax rate is

1.45%.

How much is the Payroll/FICA tax?