Ann has 3 kg of flour. She buys 2 more packets of flour, each of mass m kg. a. Find the amount of flour Ann has altogether in term of m. b. If m = 2, how much flour does Ann have altogether?

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