if mr jones guys paddle for $35 instead of $50 and uses the same percent increase on price how mnau paddle must mr jones sell for the total paddle sales bedore tax to be at least $250

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your