Calla has a $5 off coupon for an online
store. She notices that she can use her
coupon and get 4 items for the same
price as 2 items without the coupon. The
equation 4x - 5 = 2x represents the
situation, where x is the price of each
item. Which group of algebra tiles models
this situation?

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?

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.