Shade the normal curve to find the area that is 68% of the graph. (you can use the magnifying glass to zoom in if it is too small)

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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 base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?