George washington Who was as a president

What is the simplified expression for 6(2(y+x))

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)