Acar is traveling at 55 mi/hour. what is the cars speed in feet per second

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Can someone me with the property questions for 12 13 and 14 plz

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a