An artist spends a total of $150 on the supplies needed to create the paintings, p, and drawings, d, he plans to sell. Choose the expression that would represent the profit the artist will make if each painting sells for $75 and each drawings for $35. (A) 75p + 35d - 150
(B) 35p + 75d - 150
(C) 75p - 35d - 150
(D) 35 + p + 75 + d + 150

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?