In Monster Legends you can purchase gold and gems to feed your monsters and make upgrades in the game. Tyrece purchased 150 gold and 1, 200 gems for $9.99. Max purchased 50 gold and 4,000 gems for $5.99. Which system of equations best represents this situation?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

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?