Please help I really need this
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How do you find the area of a triangle

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?

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid