Answer:
52 mph
Step-by-step explanation:
1 hour is 60 minutes, 4 times the time period given in the problem. If the speed is constant, the car will travel 4 times the distance in 4 times the time.
... 4 · (13 miles) = 52 miles
The car will travel 52 miles in 1 hour, so its speed is 52 mi/h.
