In 1 hr, a plane can travel 440 mi into the wind and 480 mi with the wind. Find the wind speed and the rate of the plane in still air. The wind speed is
The rate of the plane in still air
Wind speed=
The rate of the plane in still air=

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68