Final answer:
To calculate the distance an airplane can travel in 2 1/4 hours at a speed of 880 km/h, simply multiply the speed by the time, resulting in 1980 km.
Step-by-step explanation:
An airplane flies with a constant speed of 880 km/h. To find out how far it can travel in 2 1/4 hours, we need to multiply the speed of the airplane by the time it is flying. Since 2 1/4 hours is the same as 2.25 hours, we calculate the distance by multiplying 880 km/h by 2.25 hours.
Distance = Speed × Time
Distance = 880 km/h × 2.25 hours
Distance = 1980 km
Therefore, the airplane can travel 1980 km in 2 1/4 hours, which corresponds to option a.