Dennis is a basketball fan. Dennis went to a Basketball Expo to buy and trade some rookie cards. Entry into the Expo cost dennis $75 dollars. Each
card that dennis bought cost him $100 dollars. Write an equation that
shows the total amount of money that Dennis spent at the Expo.

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?

12.0 million metric tons of beef produced annually in the u. s. out if 65.1 mikkion metric tons of produced annually worldwide

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13