Please 11/6÷5
(ignore this)

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?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0