Final answer:
Matthew's speed is calculated by multiplying the number of laps (9) by the distance per lap (0.25 miles), resulting in 2.25 miles per hour. The nearest whole number speed provided in the options is 3 miles per hour, making option C correct.
Step-by-step explanation:
The question involves calculating Matthew's speed in miles per hour. Since the track at Pine Middle School is a quarter of a mile per lap, and Matthew walked 9 laps in one hour, we can find Matthew's speed by multiplying the number of laps by the distance per lap. The calculation is as follows: 9 laps times 0.25 miles per lap equals 2.25 miles in one hour. Therefore, Matthew's speed was 2.25 miles per gallon.
To find the correct answer, we compare our calculation with the options given. The closest option to 2.25 miles per hour is C) 3 miles per hour, which is the nearest whole number to our calculated speed. Hence, the correct answer is C) 3 miles per hour.