Question
Cathy spent 3 days making paper guns for her brothers. Each day, she managed to make 4 more paper guns than the day before. She made a total of 69 paper guns. How many paper guns did she make on the first day?
2 m

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Cathy spent 3 days making paper guns for her brothers. Each day, she managed to make 4 more paper guns than the day before. She made a total of 69 paper guns. How many paper guns did she make on the first day?