Help I need answers for this please

Which of the following are parts of a sphere

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

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?