Use cross products to match each proportion to the equation that can be used to solve it.

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 value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

(x-5)1/2+5=2 what is a possible solution?