What is the constant of proportionality in the table below

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Classify the following triangle check all that apply

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?