A car travels an average speed of 56 mph how many miles does it travel in three hours and 45 minutes

the formula we use is

distance = speed * time

In the question we are provided with the info that

speed = 56 mph and

time = 3 hours 45 minutes = 3 + 45/60 hours = 3 + 0.75 hours = 3.75 hours

Now lets plug the values in the formula

distance = speed * time = 56 mph * 3.75 hours

distance = 210 miles