Similarities between the hindu-arabic mathematical system and the mayan system?

Which of the following was used only once, to ratify the 21st amendment (repealing prohibition)? a.three-fourths of both houses of congress. b.three-fourths of the state legislature approved it. c.two-thirds of the state legislature approved it. d.ratifying conventions in three-fourths of the states approve it.

How did access to and rivers the progress of industriation in britain

(easy 35 ) i am a confederate general during the civil war. who am i? 1. ulysses s. grant 2. robert e. lee 3. george mcclellan 4. winfield scott