You want to buy a car and figure you can only pay $500 a month for the next 5 years for a loan. If the interest rate is 4.5% percent, how much can you afford to borrow to buy a car?

You are considering an investment that will pay you $6,000 per year for the next 4 years, and will also give you a lump sum at the end of the ten years for $20,000. The investment costs $28,500. What is the return on this investment?

You are offered an investment that will pay you $100 in one year, $300 in the next year, $300 the next, $800 the next year. You can earn 12 percent on very similar investments. What is the most you should pay for this investment?

You are offered an investment that will give you three $500 payments over three years and two $400 payments over the last two years. You require a return of 12%. What is the value of this investment?

There is an investment that promises to pay you $600 every year forever. You require a 13% return. What is the most you would pay?

please be more specific