Question
Penelope received $18.90 as interest after depositing her savings in the bank for one year. If the bank pays 4.2% per annum as interest, how much money did Penelope have altogether at the end of one year?
2 m

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Penelope received $18.90 as interest after depositing her savings in the bank for one year. If the bank pays 4.2% per annum as interest, how much money did Penelope have altogether at the end of one year?