What is two facts can you double to find 8 x 4

In what form is the following linear equation written y=9x+2

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?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).