State whether triangle abc and triangle aed are congruent. Justify your answer.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

This is different from the first one can someone me

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?