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We'll solve this equation in order to find the score of the 4th test, which we denote with x.

. Solving it we find that x=63. And it is the final answer for this problem.
Answer:
definitely B
Step-by-step explanation:
The shape goes through three transformations, and turns 180 degrees in total (flips). Therefore, each transformation is 180/3=60 degrees. The vertical of the L turns left in the first transformation, so that means that the L turns counterclockwise. The answer is 60 degrees counterclockwise.
2588 divided by 14
=184
184 divided by 11
=16
184 children and 16 adults