Two cars are traveling in the same direction. the first car is going 40 mph and the second car is going 55 mph. the first car left 3 hours before the second car. which equation could i use to solve to find how many hours it will take for the second car to catch up to the first car?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.