he populations of Cities A and B are 2.8X10 and , respectively. The population of City C is twice the population of City B. The population of City C is how many times the population of City A? The population of City C is nothing times the population of City A. (Round the final answer to the nearest whole number as needed. Round all intermediate values to the nearest tenth as needed.)

What is the 12th term of b(n)=-4-2(n-1)

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

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?