Devin has a change jar that contain only half dollars and pennies. he has 93 coins which add up to a total of $23.96. how many of each type of coin does he have?

The area of square garden is 300m squared. how long is the diagonal?

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?

What are the excluded values? m+5/mn+3m