Seth and jennifer are trying to figure out how long they can live off their $22,500 savings if they spend $530 each month. they have each created an equation.

seth's equation jennifer's equation
y = 22,500 + (530x) y = 22,500 – (530x)

which person has the correct equation to model this linear relationship?

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?