At 55 mph, what is the approximate speed in feet per second?

Answer: B — 80.85 fps

To convert miles per hour (mph) to feet per second (fps), you can use the conversion factor that 1 mile equals 5280 feet and 1 hour equals 3600 seconds. The formula for the conversion is: \[ \text{fps} = \text{mph} \times \frac{5280 \text{ feet}}{1 \text{ mile}} \times \frac{1 \text{ hour}}{3600 \text{ seconds}} \] Using this formula for 55 mph, you would multiply: \[ 55 \, \text{mph} \times \frac{5280 \, \text{feet}}{1 \, \text{mile}} \times \frac{1 \, \text{hour}}{3600 \, \text{seconds}} \] First, calculate the number of feet traveled in one hour: \[ 55 \times 5280 = 290400 \, \text{feet} \] Now, to find out how many feet per second this corresponds to, divide by the number of seconds in an hour: \[ \frac{290400 \, \text{feet}}{3600 \, \text{seconds}} \