how many valid ciphers exist in the hexadecimal system, and the respective "weights" of each place in a hexadecimal number;

perform the following conversions:

$-3516$ into decimal: $(3^{**}{16}^{{?}^{{?}^{?}}}1)+(5^{**}{16}^{{?}^{{?}^{?}}}0)=(3^{**}16)+(5^{**}1)=48+,$ Answer

$3(3^{**}{16}^{{?}^{{?}^{?}}}1)+(5^{**}{16}^{{?}^{{?}^{?}}}0)=(3^{**}16)+(5^{**}1)=48+5=53$

${34}_{10}$ into hexadecimal: $3416=2$ with reminderof$(2)($least significent digit$)$

$210=0$ with reminder of $($mast signi ficant digit$)$

al: heladecimad represation: $22$ therefare $34$ in decimal is $c$

${11100010}_2$ into hexadecimal: to $22$ in hexadicemal

So$,$ for $11100010//110$ in binasy is E in hexadecimal

$-9316$ into binary:

$0010$ in binaly is $2$ in hexadicemal, combine them, and you

$9$ in hexadecimal is $1001$ in binaly