Final answer:
The total distance covered by the car is calculated using the formula Distance = Speed x Time, which equals to 450 miles.
Step-by-step explanation:
The student asked about the total distance covered by a car traveling at a speed of 45 miles per hour for 10 hours. To calculate the total distance, we use the formula:
Distance = Speed × Time
Thus, the distance the car covered is:
45 miles/hour × 10 hours = 450 miles
Therefore, the correct answer is: (b) 450 miles.