Free Points bc im bored :) sry only 5 per person-

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Can someone me out here and the tell me the greatest common factor

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?