In MY opinion the most important transportation invention was the train.
It should be D. It's the one that makes the most sense. :)
C. 23 hrs 56 mins and 4 sec
<span>The Twenty-first Amendment (Amendment XXI) to the United States Constitutionrepealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 16, 1919. The Twenty-firstAmendment was ratified on December 5, 1933.</span>
Wait it isn't 5! Just a second. It is -15
-4 times 5 is negative 20. When you add 5 to negative 20, it becomes -15