Answer:
D
Step-by-step explanation:
Let's find unit rate of each (number of miles traveled in 1 hour). For that we will divide the distance by time to get the unit rate.
Note:
(A)
rate = mph (miles per hour)
(B)
rate = mph
(C)
rate = mph
(D)
rate = mph
<u>As we can see, the first 3 rates are same, 75 mph, and the last one is mph. So clearly, the last rate is the slowest.</u>
D is the right answer.