To get to work, matt walks 0.75 miles from his house to the bus stop and rides the bus 3.8 miles to his office. if he walks at a pace of 3.6 miles per hour and the bus drives at an average speed of 15 miles per hour, how long is his commute?
a. 27 minutes and 7 seconds
b. 27 minutes and 42 seconds
c. 46 minutes and 16 seconds
d. 1 hour, 6 minutes and 20 seconds
question has something to do with d=rt