Awave with a height of 5 feet and a wavelength of 15 feet has a wave base of a. 3 feet b. 7.5 feet c. 6 feet d. 12 feet

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

Answer (true);