Please answer in detail. Thank you very much!

2. What is the most you would be willing to pay for a $100,000 bond that matures in 14 years and has a 9% coupon rate, if your RRR = 10%? 9. A company has 18,010,000 worth of PPE entered on its books for 2019, net of depreciation. It charges off 11% of those assets as depreciation expenses during 2020. PPE for 2020 is then listed at 17,000,000 net of depreciation. So...what was the company's investment in PPE during 2020? 10. You buy a stock for $10.25/share. It pays a $0.75 dividend annually. After one year you sell it for $10.50 share. One was your one-year rate-of-return