Identify the sampling technique used:35 sophomores, 24 juniors, and 25 seniors are randomly selected from 388 sophomores, 418 juniors, and 573 seniors at a certain high school.

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

What’s -11-33k and factor each expression completely

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?