Question
Billy has a box of mochi balls to distribute to the friends. If he gives each friend 4 mochi balls, he will have 4 mochi balls left. If he gives each friend 9 mochi balls, he will be short of 51 mochi balls. How many mochi balls does he have in his box?
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Billy has a box of mochi balls to distribute to the friends. If he gives each friend 4 mochi balls, he will have 4 mochi balls left. If he gives each friend 9 mochi balls, he will be short of 51 mochi balls. How many mochi balls does he have in his box?