Simply the expression - 3 ( 1 + 2v)

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 are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.