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patriot [66]
3 years ago
15

I need help fast. Number 18 and 19

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

18.=400%

Step-by-step explanation:

80/20 we get 4 then we multiple 4 ×100 we get 400 and we check the answer 400% ×20 =80

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