Do I just plug in the numbers? How come most pairs make it not true?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

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?

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)