Answer:
Glass A holds the most, It holds more than glass B because of its cone shape.
Step-by-step explanation:
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Answer:

Step-by-step explanation:
Start with the given

Divide the two on both sides to get

Since all the sides add up to 10x+2, that means that 10x-2-<side1>-<side2>=<side3>. Plugging it in, we have 10x-2-5x-(2x+9)=side3, and 5x-2-(2x+9)=side3, then expanding it to 5x-2-2x-9=3x-11=side3