The students at tristan's school voted for a new school colour. 627 students voted for brown and the other 209 students voted for yellow. what percentage of the students voted for brown?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

What is the radical expression that is equivalent to the expression 27 1 over 5?

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?