Michael earned $27 mowing lawns. he earned $12 ess than that washing windows. he earned 3 times as much money walking dogs as he earned washing windows. how much money did michael earn walking dogs? how much did earn all together?

Add the fractions and simplify 1/2+ 1/3

If g^-1(x) is the inverse of g (x) which statement must be true

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?