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vivado [14]
3 years ago
15

I need help on this question

Mathematics
1 answer:
pogonyaev3 years ago
5 0

Answer:

315

Step-by-step explanation:

1. This is not a scale rectangle and it angers me.

2. All you have to do is draw proportions.

5x7=35

15x21=315

Youll notice that 5x3=15 and 7x3=21 so it’s just proportions!

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