Kevin and Mary walk around a track. Kevin walks each lap in 5 minutes. Mary walks each lap in 3 minutes. The two of them begin at the starting line at the same time. They walk until they meet again at the starting line. How much does it take for them to meet again at starting line?

How many laps does Kevin complete?

how many laps does Mary complete?​

What is the y intercept of f(x)=(1/2)^x?

Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?

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?