Suppose a (the word 'a' means starting amount is 1) radioactive substance decays at a rate of 5% per hour, what percent of the substance is left after 10 hours? (make sure you convert your answer from decimal to percent and round to the nearest whole percent)

Which best explains how wealthy residents of italian cities contributed to the renaissance? a) wealthy residents bought works of art, which supported artists. b) wealthy residents participated in religion, which supported the church c) wealthy residents participated in music, which supported the arts. d) wealthy residents bought classical books, which supported scholars.

Ineed with this unit test 1. japan became a peaceful democratic nation relatively quickly after the end of world war 11 which step is not part of it post-war transformation -adopting a new constitution -disarming most of the military -giving women rights to vote -giving the emperor more political power 2. why did mao start the cultural revolution? -he thought government officials had promoted a very narrow view of communism -he wanted to speed up change and eliminate western, capitalist influence-he wanted to speed up the economy by promoting capitalism -he wanted to restore traditional chinese culture 3. what launched the korean war? -general macarthur led an invasion of north korea -north koreans, with stalin's approval, invaded south korea -south koreans tried to capture the government in p'yongyang-chairman mao urged the south koreans to invade north korea

Plz which of the following countries did not claim the oregon country in the early 1800s. a. russia. b. britain. c. the united states d. france.