What is the vertex of the graph of the function below? y= x2 - 10x + 21
O A. (5,-4)
B. (3,0)
O C. (5,0)
OD. (3,-4)

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

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?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?