You are considering an investment in $30-$year bonds issued by Moore Corporation. The bonds have no special covenants. The Wall Street Journal reports that $1-$year T$-$bills are currently earning $3\mathrm{.}72\%.$ Your broker has determined the following information about economic activity and Moore Corporation bonds:

Real risk$-$free rate $=2\mathrm{.}09\%$

Default risk premium $=2\mathrm{.}22\%$

Liquidity risk premium $=0\mathrm{.}50\%$

Maturity risk premium $=1\mathrm{.}88\%$

What is the fair interest rate on Moore Corporation $30-$year bonds? $($hint: assume function on slide $27$ of Lecture $3$ is a simple summation$)$