Answer:
Mary earns interest in one year is $88 .
Step-by-step explanation:
Formula
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As given
If Mary deposits $275 in principal at an interest rate of 3.2 percent .
Principle = $275
Rate = 3.2%
Time = 1 year
Putting all the values in the formula
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Simple interest = $88
Therefore the Mary earns interest in one year is $88 .
