Two cars are traveling in the same direction. the first car is going 40 mi/h, and the second car is going 55 mi/h. the first car left 3 hours before the second car. which equation could you solve to find how many hours it will take for the second car to catch up to the first car? a: 55t +3= 40t, b: 55t+165=40t, c: 40t+3= 55t, d: 40t+120= 55t plz show your work