2. На одной стороне угла А, взяты точки D и B, а на второй - Си Е, так что AD=DC и AB=AE. Докажите, что ВС=ED.​

Sorry guys but as you have a small brain

For how answer my question this will be the last question can you answer in math subject

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?