can i get a detailed answer with the equations used for every question plz?

You deposit $120 in a savings account earning 10% compounded annually for 6 years. How much is in the account at the end of that time. You have a five-year loan on which you will make annual payments $2,000, beginning now. If the interest rate on the loan is 9%, what is the present value of this annuity? 1. $230.000 1.$8,853 2. $9,588 3 . $8,479 4. 8,895 2. $212.587 3. $250 4. $222.587 Your firm produced revenues of $1,145,227 in 2008. It has expenses (excluding depreciation) of $812,640, depreciation of 131,335, and interest expense of 81,112. It pays an average tax rate pf 35 percent. What is the firm's net income after taxes? You are looking to invest $15000 in a bank CD. Which one will have the highest future value if you plan to invest for 5 years? 1. $48,475 2. $78,091 3. $68,148 4. $76,848 1. 3.5% compounded daily 2.3.75% compounded annually 3. 3.25% compounded monthly 4. 3% compounded quarterly Amhomar has deposited $2500 today in an account paying 6 percent interest annually. What would be the simple interest earned on this investment in five years? If the account paid compound interest, what would be the interest-on-interest in five years? 1. $90.90 2. $95.90 3.95.56 4. 90.65