If a car travels 80 miles in 2 hours, what is its speed in miles per hour?

To find the speed of the car, we use the formula:

[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{80 \text{ miles}}{2 \text{ hours}} = 40 \text{ miles per hour} ]

Therefore, the speed of the car is 40 miles per hour.