Emma spent 4 1/2 days planting her garden. her brother spent 2/9 as much time as emma did. how many days did her brother spend planting his garden?

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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?