Billy was 45 miles from his house at 10:00 am and 248 miles from his house at 2:00 pm. What is his average rate of speed?
A20.3 miles per hour
B25.375 miles per hour
C32.75 miles per hour
D50.75 miles per hour
A20.3 miles per hour
B25.375 miles per hour
C32.75 miles per hour
D50.75 miles per hour