How do you write the decimal value $-113$ as

$($a$)$ an $8-$bit signed number expressed in hexadecimal?

Enter a hexadecimal number with two digits and the leading $0$x$,$ e$.$g$.,0$x$1$A$.$

$($b$)$ a $16-$bit signed number expressed in hexadecimal?

Enter a hexadecimal number with four digits and the leading $0$x$,$ e$.$g$.,0$x$12$AB$.$

$($c$)$ a $32-$bit signed number expressed in hexadecimal?

Enter a hexadecimal number with eight digits and the leading $0$x$,$ e$.$g$.,0$x$123456$AB$.$

Hint: You do not need to work hard for parts $($b$)$ and $($c$)$