Solve the equation using addition or subtraction

1. 4 = q + 13

2. 5.5 = -2 + d

3. -7y = 28

solve the equation using multiplication or division

1. -13 = m/-5

solve the equation

1. 3/4 x = 9

2. 3/8p = 9

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

See attachment below and find the equivalent of tan(∠qsr)

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?