George Washington was chosen commander of the continental army upon the recommendation of

George Washington was chosen commander of the continental army upon the recommendation of  by the Continental Congress.

Explanation:

George Washington was appointed as Commander in Chief of the Continental troops by the Continental Congress on June 19, 1775. Washington was elected over other competitors such as John Hancock based on his former military background and the belief that a general from Virginia could improve combine the colonies.

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: