The total cost of a shirt and a pair of pants was $93.43. If the price of the shirt was $2.43 less than the pair of pants, what was the price of the shirt? Express your answer as a simplified fraction or a decimal rounded to two places.

Precalculus question, image attached.

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?

How do i i solve this equation? -18 = x/3 + 3