What did it take to convince Lt. Col. James E. Jones that using Navajo codes would work? CHOSE ALL THAT APPLY. PLEASE HELP! GIVE 10 PTS

1. An experiment proved the speed and accuracy of Navajo codes was better than the code that was commonly used by the Marines' Signal Corps.

2. The security of the Navajo code was intensely examined and analyzed by cryptography experts who failed to break it.

3. Lt. Col. Jones had known Navajo Philip Johnston for many years, and trusted his recommendations.

4. The Navajo language was simple, and it would be easy for English-speaking Marines to learn and use.

The congress shall have power to lay and collect taxes, duties, imposts and excises, to pay the debts and provide for the common defence and general welfare of the united states . .; to borrow money on the credit of the united states; to regulate commerce with foreign nations, and among the several states, and with the indian tribes. —constitution of the united states, article i, section 8 which of these are expressed powers granted by this part of article i, section 8? check all that apply. lay and collect taxes and duties pay debts regulate american indian groups regulate commerce within states borrow money regulate commerce with foreign nations

The people of the arctic lived in blank during the winter, while subarctic peoples blank

Compare the roles of the three countries of the central powers.