A scientist began a study with a sample of 450 bacteria. He noticed that the number of bacteria in the sample after tduys can be modeled by the equation P 450(4)! In this equation, what does 4 represent?

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?