Answer:
Easy! The answer is 100!
Count how many cubes are in each row, which is 10. Count how many stacks are there, which is also 10. 10 times 10 = 100!
Step-by-step explanation:
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Hey there!!
Given:
... A=3B+7C
Subtracting 7C on both sides:
... A-7C=3B
Dividing by B on both sides:
... (A-7C)/3=B
<em>Hope my answer helps!</em>
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