I am a number Tell my identity! Take me seven times over And add a fifty! To reach a triple century You still need forty!
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0
Answer:
Please mark me as brainliest
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1
Answer:
210/7
Step-by-step explanation:
40=300
= 7n + 90 =300= 7n = 300 - 90
= 7n=210=n=210/7
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