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43 votes
43 votes
Jaoquin buys 3 dozen lightbulbs. After changing the lightbulbs in his house, he has 15 lightbulbs left. How many lightbulbs did he use?

User Sirko
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1 Answer

13 votes
13 votes

Answer:

21

Explanation:

1 dozen=12

3 dozen= 36

15-36=21

User Leetom
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