12) What is 6.79 x 10 to the 5th power written in standard form
A 67,900,000
B 679,000
C 0.00000679
D 0.0000379

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?

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters