Which governmental action illustrates the system of checks and balances

Iam gonna fail this class ! in 2001 mexico imposed a 20% tax on all soft drinks not made from sugar cane high fractals corn sit-up which is made from corn, is often used in place of cane sugar to manufacture soft drinks. which nation would most likely be impacted by mexico’s policy change?

The code talkers work contributed mostly to

The national security act of 1947 reflected: