A car traveling on a highway is 60 miles away from home after 1 hour, and is 300 miles away from home after 5 hours. What is the rate of change of the car's distance over time?. a. 1/60 mph. b. 15/2 mph. c. 55mph. d. 60 mph

The rate of change of car’s distance over time is equal to the velocity of the car. To find the rate of change of the given conditions, we use the formula veloctity = (Distance 2 + distance 1) / (time2 + time 1). In this case, we substitute, (60 + 300) miles / (1+5) hours equal to 60 miles per hour. Answer is D. 60 mph