Find the exact value of x. Do the side lengths form a Pythagorean triple? 4 and 6

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?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)