Flat price of bond

CFA Level I Fixed Income
#1

Need help with this. How do you calculated the accrued interest? Thanks in advance.

Q: A 6% U.S. Treasury note is quoted at a price of 97.625 on July 1. The bond pays interest semiannually on March 31 and September 30. On July 1, the flat price of this bond is closest to:

A: $946.41
B: $976.25
C: $991.17

#2

Are bonds quoted at clean price or at dirty price?

#3

clean

#4

Which is the same as the flat price. Accrued interest doesn’t enter into it.

#5

What if it was at dirty price? Thanks again for your help.

#6

Roughly 3 months of accrued interest is \frac{3}{12}\left(6\%\right)\left(\$1,000\right) = \$15