One cooy machine can run off copies in 198 minutes. a newer machine can do the same job in 126 minutes. how long does it take the two machines, working together, to make all of the necessary copies?

10% of 1,900,000. show me how you got the answer

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?