How many cubes are needed to build the base of this structure?
A.6
B.3
C.5
D.4

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

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?

Maria solved an equation as shown below. what is the solution to maria’s equation?