Might Be This One:
The Iroquois Confederacy were six tribes who lived, fought, ate, built, and worked together to better their lives. They created laws and government. Some of their ideas worked so well they helped our country create its first democratic government and constitution.
Most likely this one:
The Peacemaker established clans within the nations of the Iroquois Confederacy. The clan system united the nations and ensured peace among them. They are still an important part of the identity of Iroquois people today. They were an influence on the Founders of America.
According to Graham Allison book, Nuclear Terrorism, only 5 percent of daily cargos into the U.S are screened where every day 30,000 trucks, 6500 rail cars and 140 ships deliver over 50,000 cargo containers into the United States. This rarely involves physical inspection which may not detect nuclear weapons and fissile materials.
The Answer is 125
50+50=100
100+10=110
110+15=125