T+20.04=14.3 uhm okay it says it's too short s yea please answer

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Divide reduce the answer to lowest term 3/7 divided 1 1/6

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