Simplify (4 to the power of 7 over 5 to the power of 2) power 3. a. 4 to the power of 10 over 5 of the power 2 b. 4 to the power of 4 over 5 c. 4 to the power of 21 over 5 to the power of 6 d. 12 to the power of 7 over 15 to the power of 2

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?

Select the graph of the solution. click until the correct graph appears. |x| = 3

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?