1- A store offers a 'special deal' to lend us $5,500 today, whereby you pay off the loan in one year with 12 monthly payments of $500 each, with the first payment due 1-month from today. What effective annual rate (EAR) are they charging us on the loan?

2-A firm expects to make payments of 1.1, 1.5, 1.2, 1.4 and 1.9 million for a particular supply over each of the next 5 years. What is the present value of this mixed cash flow stream if the annual rate is 10%?

3-A firm expects to make payments of 1.1, 1.5, 1.2, 1.4 and 1.9 million for a particular supply over each of the next 5 years. What constant annual payment is this equivalent to if the annual rate is 10%? That is, what is the time-value weighted average of this mixed-cash flow stream?