Which change can be made to correct the chart?
the expression 3x3 should be 3x2.
the expression 6x should be 6xy.
the expression x2y should be x2y2.
the expression 4y should be 4y2.

Which shows the pre image of triangle xyz

What is the area of the trapezoid shown ?

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?