Hi! i'm having trouble with my algebra homework. the second question (b) confused me, i don't understand what they are asking or what to do. can you me? ! question: you are looking to carpet your bedroom. the area of your rectangular bedroom is given by the expression a=10x^2-50x. a. what is the gcf of the binomial? (i'm pretty sure the answer is 10 you don't have to me with this.)b. if the length of your bedroom is "five times x", what is the width? (this is what is confusing me, .)c. if the length of your bedroom is the gcf in part (a), what is the width?

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?