<h2><u>ANSWER</u></h2><h3>UX+RX=W</h3><h3>LETS TAKE X COMMON</h3><h3>X(U+R)=W</h3><h3>X=W/(U+R)</h3>

Circle A would make more sense (I'm not exactly sure) because it shows the entire circle (if you know what I mean).
Answer:
The difference in the areas of the cross-sections is 20 m².
Step-by-step explanation:
^^^
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Hi my lil bunny!
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
Let's simplify step-by-step.


Answer : 
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Have a great day/night!
❀*May*❀
Answer:
1184.5
Step-by-step explanation:
150+400+180+300=1030
1030 × 15% = 154.5
(15% is also 0.15)
1030 + 154.5 = 1184.5
I hope this helps you :)