An airplane takes 4 hours to travel a distance of 2600 miles with the wind. the return trip takes 5 hours against the wind. find the speed of the plane in still air and the speed of the wind.

What is the inverse of the function f(x)=4x+8

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000