Final answer:
The algebraic expression to show how far the car will travel in a certain number of hours is D = 55t.
Step-by-step explanation:
To represent the distance traveled by a car at a certain speed, we can use the formula:
Distance = Speed × Time
In this case, the car is traveling at a speed of 55 miles per hour. So the algebraic expression would be:
D = 55t
Here, D represents the distance traveled by the car, and t represents the time in hours.