Hello. Please show solution. (no image/photo answers) must be typed. My first time asking here.

1. Suppose you are considering investing in a zero coupon Brazilian bond that costs $800 and matures in 10 years at which point the bond will be worth $1,000. Assuming annual compounding, what is the annual yield (in percent) on this bond?

2. Suppose you are considering investing in a zero coupon Brazilian bond that costs $800 and matures in 10 years at which point the bond will be worth $1,000. Assuming semi-annual compounding, what is the annualized interest rate (in percent) on this bond?

3. Suppose you borrow$10,000 for 1 year on your Visa at an annual interest rate of 25%. What effective annual yield (in percent) will you actually end up paying if Visa compounds the interest in daily basis?