PLZ HELP ASAP There are 20 oranges and 24 apples in a bag of fruit for a class. Students get to randomly pick a piece of fruit out of the bag for their snack. What is the probability of a student selecting an apple and the next student selecting an orange if the fruit is not replaced?

A. 30/121

B. 120/473

C .57/242

D. 44/87

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In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4πr2. write your answer in scientific notation.