I don’t know how to do this . I need help

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

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

Write the point-slope form of an equation of the line through the points (-2, -3) and (-7, 4).