Is this an expression or an equation? 4a + 3b-6cx9

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?

Ineed the solution to this problem and the steps.

What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2