PLEASE!!! I NEED HELP WITH THIS ASAP!!!

part 1) Joaquim Alvez purchases 32 bonds that mature in 2024 at 96.7.
They have a coupon rate of 8.625%.

Find the total cost if commissions are $10 per bond.

part 2) Joaquim Alvez purchases 32 bonds that mature in 2024 at 96.7.
They have a coupon rate of 8.625%.

Find the annual interest.

part 3) Joaquim Alvez purchases 32 bonds that mature in 2024 at 96.7.
They have a coupon rate of 8.625%.

Find the effective interest rate rounded to the nearest tenth.