Which inequality is equivalent to |x-4|<9 –9 > x – 4 < 9
–9 < x – 4 < 9
x – 4 < –9 or x – 4 < 9
x – 4 > –9 or x – 4 < 9

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?

What is the slope of the line shown below?

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years