What is the measure of arc MN
A.70
B.140
C.30
D.120

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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?