Question $3$

Answer the blanks. Show math in the worksheet.

$($a$)A{C}_{16}=$

$\mathrm{.}10=$

$?$

$($b$){10111011}_2=$

$\mathrm{.}16=$

$($c$){23}_{10}=$

$2=$

$-16$

$0000=0=0$

$0001=1=1$

$0010=2=2$

$0011=3=3$

$0100=4=4$

$0101=5=5$

$0110=6=6$

$0111=7=7$

$1000=8=8$

$1001=9=9$

$1010=A=10$

$1011=B=11$

$1100=C=12$

$1101=D=13$

$1110=E=14$

${1111}_2=F_{16}={15}_{10}$

I need help with this problem.