In the term -3k?mn, state the coefficient of
a) k²mn
b) -mn
c) 3k²

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Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

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?