$7,00U Invested for 20 years grew to $28,000. What annual interest rate was earned? 70 18% 4. Which of the following is worth more assuming an interest rate of 7%: $300,000 nowo the following cash flows? Year 2 Year 1 75,000 Year 3 150,000 Year 4 50,000 100,000 B BOD TI-30Xa TEXAS INSTRUMENTS IN LOG SW COSTA DAG 31 STO HYP 5. You invest $2,500 into a 401K which is matched by your employer. If this investment is made each year for 35 years earning an average annual rate of 7%, how much will you have at retirement? b. What would you have at retirement if invested as an annuity due? 6. The breakeven point for Part Time Student Co. (PTSC) is 20,000 units of its product and the Selline price is $40. PTSC has fixed costs of $500,000. If a profit of $200,000 is desired, how man