Ascale model of train has an engine that is 17.2 cm long and 10 cars that are each 13.5 cm long. each centimeter on the model represents 0.8 m on the actual train. how long is the actual train?

Is the square root of 4 plus the square root of 16 rational?

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?