What is the value of a in the equation 3 a plus b equals 54, when b equals 9? 15
18
21
27

Consider a graph for the equation y= -3x+4. what is the y intercept? a) 4 b) -4 c) 3 d) -3

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 value of the expression below? 148+(-6)| + |– 35= 7|