Which of the following values for the correlation coefficient indicates the strongest relationship r=-0.2
r=-0.1
r=-0.8
r=0.5

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

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?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?