Mathematics, 03.02.2020 19:04, maguilarz2005

David invested $500 in a savings account for 4 years. at the end of 4 years, his savings account had $700 in it. if $500 represents p, the principal amount, which percent represents the annual simple interest rate (r) that david earned after the 4 year (t) period?

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David invested $500 in a savings account for 4 years. at the end of 4 years, his savings account had...