Answer:
D. All of the above
Explanation:
Sporting officials are typically responsible for......starting and ending the competition, ensuring the game flows properly AND monitoring pregame activities.
Okay what is the question :)
Answer:Hope this helps :D
Explanation:
Cu = 27, S = 16 and O = 25.92
relative formula mass = 27 + 16 + (5.4x4.8) = 286.216
only one aluminum atom of relative atomic mass
64 % Cu = 100 x 64 / 160
x = 1036.8
They usually measure them in grams or ounces. Sometimes, they will use pounds (for a puppy).
He helped with the black people aswell anyways Rosa parks