Please use excel

What is the present value, in 2018, of $10,000 received on 2/14/2030 when the annual interest rate is 8% per year? 5. Your friend has offered to give you either $5,000 today or $10,000 in 10 years. If the interest rate is 7% per year, which option is preferable? 6. 7. You have been offered an investment opportunity. If you invest $10,000 today, you will receive $500 one year from now, $1500 two years from now, and $10,000 ten years from now. Should you invest in the opportunity if your opportunity cost is 6% per year? what about if your opportunity cost is 13% per year? a. b, 8. You have been offered an investment opportunity. If you invest $10,000 today, you ill receive $500 on 10/25/2019, $1,500 on 3/1/2024, and $10,000 on 5/10/2034. Should you invest in the opportunity if your opportunity cost is 8% per year