Question
Jack had 4 more 20-cent coins than 50-cent coins in his piggy bank. Given that he had $13.40 in total, how many 20-cent coins did Jack have?
4 m

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Jack had 4 more 20-cent coins than 50-cent coins in his piggy bank. Given that he had $13.40 in total, how many 20-cent coins did Jack have?