Can you help me answering 2 ii) and q3)

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thank you

2 (i) You are looking into an investment that will pay you 27,000 per year for the next 10 years. If you require an 8% return, what is the most you should pay for this investment? (ii) Sylvia has been offered an investment that will double her money in 10 years. What rate of return is she being offered? A corporate bond has a 10% coupon rate and a $1,000 face value. Interest is paid semi-annually and the bond has 20 years to maturity. If investors require a 12% yield, what is the bond's value? 3