|1. maria and 5 of her roommates decide to buy new
furniture for their apartment. macy's is offering 15%
off all full price items. the couch, coffee tables and
two end tables come to $1,250. what is the amount
each roommate needs to pay including the 9% sales
tax?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2