In my class we're working with inequalities. i understand the overall concept and have worked through most of the problems, but i'm unsure as to how i'm supposed to approach this it was a -3(x-1) then i wouldn't have a problem, the distribution rule would me out; but, since it's 3-(x-1), how would i approach this? would i swap the negative/subtraction symbols to make them positive/addition? or would i use the subtraction sign as an invisible (-1) in order to make the equation -x+1?

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?

Percent increase and decrease. original number: 45 new number: 18

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?