Mathematics, 26.09.2019 00:20 neon1393

Dentalia shells were used by some native american tribes to make jewelry. each dentalia shell is 1.25 inches long. if a necklace had been made with 18 dentalia shells, about how long was this necklace? explain your estimate.
i need to know, how to explain the estimate?
you

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Dentalia shells were used by some native american tribes to make jewelry. each dentalia shell is 1.2...