An airplane flies 3549 in 6.5 hours. what is the speed of the airplane in mile per hour?

Assuming 3549 is in miles
3549/6.5 = 546m/h

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.