What is the probability that a resident is in the age group 60-69? a. 0.385
C. 0.35
b. 0.37
d. 0.4

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 shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?