An airplane travels 1280 km against the wind in 2 hours and 1640 km with the wind in the same amount of time. what is the rate of the plane in still air and what is the rate of the wind?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.