Fourth time I had to ask this Will mark as

Mr. Gee's class orders paperback books from a book club. The books cost $2.95 each. Shipping charges are set at $4.00, regardless of the number of books purchased.

A.) If you know how many books Mr. Gee's class orders, can you determine how much money they spend? Write the corresponding expression

B.) Use your expression to determine how much Mr. Gee's class spent buying 24 books.

C.) The class has a budget of $175 to spend on books, how many books can the class order with the $175 budget.

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?