Obtain 1's and 2's complement of the following binary numbers (a) 10101011 (b) 01001110 (e) convert decimal +54, -54, -25, and +25 to binary using enough digits to accommodate the numbers. then perform the binary equivalent of (+54) + (+25), (+54) + (-25), (-54) + (+25), and (-54) + (-25). convert then answers back to decimal and verify that they are correct.

Exactly what he said he smart

Well, this code would box the whole body of an html document. by using the relative value for position, you are telling it to position relative to its normal position, which the top left corner is at (0,0). by using left: 50px, you are telling the box to set the left margin  edge to 50px and by using top: 50px, you are telling it to set the top margin edge to 50px. by doing this shifting, the top left corner of the box, which is at (0,0) would be positioned at (50,50)

Answerall but the first dimension;