Mathematics, 17.12.2020 21:00, cooljazzy1234

10 elves each made 10 xylophones. Each xylophone had 10 keys. They did this for 10 days. How many keys were made by elves? Show in exponential form and solve. 140

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10 elves each made 10 xylophones. Each xylophone had 10 keys. They did this for 10 days. How many ke...