Amir is starting a stamp collection. After 3 weeks he has collected 35 different stamps, and after 9 weeks he has collected 105 different stamps. If Amir keeps collecting stamps at this same rate, how many stamps will he have after 15 weeks?
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Answered by
2
Answer:
175 stamps
Step-by-step explanation:
Simple unitary method
Answered by
1
Answer:
he will have 175 stamps after 15 weeks.
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