PLEASE HELP!!! Harold earns $9.50 an hour making burgers at Burger Mania. He also gets a set amount of $50 each week. Last week he earned $240.

How many hours did Harold work last week?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

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