Which of the following best describes the protocols used on the Internet? The protocols of the Internet are designed by government agencies to ensure they remain free to use

The protocols of the Internet are secret to maintain the privacy and security of people using them

Each device connected to the Internet will use a protocol designed by the company that manufactured it

The protocols of the Internet are open and used by all devices connected to the network

You start out as beginner, then you will reach hand with 100 points, 250 for ambitious, 500 points + 5 brainliest for virtuoso, 1000 and 10 for expert, 3000 and 15 for ace, and 15000 and 50 for genius. it stops there. 

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 + '%';   }}