In order to create a horizontal 2-inch-thick dotted green line exactly 2 inches away from the top of the canvas, a graphic artist would most likely need to use the formatting menu and the ruler to the left of the canvas.
image manipulation and the ruler to the left of the canvas.
the formatting menu and the ruler at the top of the canvas.
image manipulation and the ruler at the top of the canvas.

Answercompressor;

Function tipcalculate (slider, bill){  var tip = document.getelementbyid('tipamount');   var slideval = document.getelementbyid('slideval');   var bill = document.getelementbyid(bill).value;   var prcnt = slider * .01;       if (bill == null || bill == '') {      tip.innerhtml = ' enter an amount';       return false;   }  if(isnan(bill)) {      tip.innerhtml = ' enter a number';       return false;   }  if(bill > = 0){      tip.innerhtml = '$' + (bill * prcnt) .tofixed(2);   slideval.innerhtml = slider + '%';   }}