Hello, can you help me work through these problems?

Thank you!

Question 2 3 pts A risk-less zero-coupon (no coupon payments) bond that will pay $1,000 in 7 years is offering a 4% implied rate of return. What is the current price of the bond? Round to nearest dollar. 760 Question 5 3 pts How much would an investor expect to pay for a $1,000 par value bond with a 5% annual coupon that matures in 12 years if the interest rate is 8%? Round to nearest whole number. 377 Question 8 3 pts How much should you pay for a $1,000 bond with 10% coupon, annual payments, and 9 years to maturity if the interest rate is 13%? Round to the nearest whole number. 612