The number of years it would take to have over $6,300 is 6 years.
Simple interest is a type of interest in which interest is earned only on the amount of money deposited.
The formula that can be used to determine the number of years is: Interest / (principal x interest rate)
Interest = $6300 - $4,200 = $2100
Time = $2100 / ($4200 x 0.085)
2100 / 357
Time = 5.88 = 6 years
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