What is used to accurately position objects on the slide using a single horizontal and vertical line that intersects in the center of the slide? guides
gridlines
ruler
border

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)

Answerthe amount of hours of driving needed to be documented is 50 hours in total; the amount of hours of nighttime is 10 hours from the 50.

I’m not sure but i need to know too

Answerdomain controller;