(ill give brainliest) (20 points) simplify by dividing. (-5/8) divided by (-3/4)

a. 20/24

b. -20/24

c. -15/32

d. 15/32

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Math each whole number with a rational,exponential expression

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?