Help pls
Slope from graph

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?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?