Flying against the wind, an airplane travels 3920 kilometers in 4 hours. Flying with the wind, the same plane travels 12,780 kilometers in 9 hours. What is the rate of the plane in still air and what is the rate of the wind?
Rate of the plane in still air

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

i believe it is the square root of 122 because when you turn it on it's side, to where the 5 inches is on the bottom, it looks like it is the same length.

the answer is 0.8in^2

hope you get it down chief.