Determine the slope of the line represented by the table of values and the y-intercept

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?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6