Mathematics, 28.08.2020 04:01 bjpvrpow74wq

If an island's only residents are penguins and bears, and if there are 21 heads and 50 feet on the island, how many penguins and how many bears are on the island?

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If an island's only residents are penguins and bears, and if there are 21 heads and 50 feet on the i...