Crystal got a raise in her hourly wage increased from $11.25 to $15.15 what is the percent increase?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

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 number line correctly shows 0.8 + 0.3?