Q$1.$ Given $A=1M\mathrm{.}52$ and $B=2N\mathrm{.}24($letters $M$ and $N$ represent $7^{th}$ and $8^{th}$ digit of your student ID number,

respectively$),A=18\mathrm{.}52B=29\mathrm{.}24$

$($a$)$ Use binary to convert between octal and hexadecimal: convert hexadecimal numbers $($A$)$