A plane traveled 4200 miles with the wind in 7.5 hours and 3900 miles against the wind in the same amount of time. Find the speed of the plane in still air and the speed of the wind
The speed of the plane in still air is
(Simplify your answer.)

it's

-232

step-by-step explanation:

step-by-step explanation: i dont

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )