Look at the function given below. f(x) = x + 2 x - 3 which of the following correctly describes the graph of this function? a. the graph of the function is decreasing over its entire domain. b. the graph of the function is increasing over its entire domain. c. the graph of the function is neither increasing nor decreasing. d. the graph of the function increases and decreases over its domain.

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

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?