Still think Mark is faster?

Mark finished first,so start with his rocket.Remembering DIRT, write down D=RT.150 miles equals x times 2 hours.Divide both sides by 2 hours.This will leave x isolated on the right side of the equation.150 miles divided by 2 hours is 75 miles over 1 hour.Mark's rate is 75 miles per hour.That's what mph means.It's the amount of miles over one hour.Still think Mark is faster?Let's set up the same equation for Bleebop and see.