The value of a car is depreciating by 12% per year. Write a rule expressing the value of the car after x years if it is currently worth $15,000. What will the car be the worth in 10 years ? What was the car worth 5 years ago ?

What is x3+3x2−16x−48 divided by x−1?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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?