Mathematics, 09.12.2021 22:40 poweradampower

Annie enjoys going to the beach to look for shells. On Saturday, she found 4 times as many shells as she found on Sunday. If Annie found 21 more shells on Saturday than on Sunday, how many shells did she find altogether over the weekend?

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Annie enjoys going to the beach to look for shells. On Saturday, she found 4 times as many shells as...