$5-$ Do the following conversion problems:

$($a$)$ Convert decimal $117\mathrm{.}125$ to binary. $(2$ points$)$

$($b$)$ Convert the octal number $36\mathrm{.}72$ to decimal, then convert the decimal result to

hexadecimal? $(2$ points$)$

$($c$)$ Convert the octal number $36\mathrm{.}72$ to binary, then convert the binary result to hexadecimal.

Is the answer the same as in b$)?(2$ points$)$

$6-$ What is the decimal number equivalent to the following signed binary numbers? $(8$ points$)$

a$)10100101$

b$)10100010$

c$)11111111$

d$)10000011$

e$)01110111$

f$)00000001$

g$)01000000$

h$)01001000$