What is the unit rate for 692.08 ft in 21.1 s?

we know that

The unit rate is the ratio of two measurements with the second term equal to one

In this problem to find the unit rate divided the total distance by the total time

so

\frac{692.08}{21.1} \frac{ft}{s}=32.8\frac{ft}{s}

that means 32.8 feet per second

therefore

the answer is

The unit rate is equal to 32.8\frac{ft}{s}

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: