25pts the next train will arrive in 22 mins and 30 seconds. in how many seconds will the next train arrive?

Plz me plz i will give a brain just plz

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Simplify using positive exponents only.