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Svetllana [295]
3 years ago
13

Help help help now plssss offering more than 5 points

Mathematics
1 answer:
zavuch27 [327]3 years ago
5 0

Answer:

C

Step-by-step explanation:

4(10^2) = 400

Check:

10x10=100 (area of 1 wall)

100× 4(the 4 walls)

4(10^2) = 400✅

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Let a = speed of the plane A, and b = speed of plane B.
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