at he grand opening of a new store every 9th customer will receive a balloon and every 12th customer will receive a $10 gift cer tificate which customer will be the first to get both a balloon and gift certificate
1 answer:
You need to find the Least common Multiple which would be the 36 customer. because 9 times 4 is 36 and 12 times 3 is 36. 36 is the least common multiple
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