How long does it take to travel 240 km at a constant speed of 12 km

For this case, the first thing you should keep in mind is the speed unit.
 The correct units are:
 12 Km / hour
 Then, we use the following equation:
 d = v * t
 Where,
 d: distance
 v: speed
 t: time
 Clearing t we have:
 t = d / v
 Substituting values:
 t = 240/12
 t = 20 hours
 
 it takes to travel 240 km about:
 t = 20 hours

I’d go with b hope it

Which of the following values are in the range is the function graphed below? check all that applya.3b.1c.0d.-2e.5f.2a