$6.$ What decimal does the bit pattern $0$xCB$00000$ represent if it is:

$$ A two$$s complement integer?

$$ An unsigned integer?

$$ A floating$-$point number assuming the IEE $754$ single precision format.

$7.$ Perform the following calculation assuming that the values are $4-$bit decimal integers stored in two$$s complement format. Be sure to consider the possibility of overflow.

$0101+1001$

$01011001$

$8.$ For the following operations: write the operands as $2$s complement binary numbers then perform the addition or subtraction operation shown. Show all work in binary operating on $4-$bit numbers.

$4+1$

$41$

$14$