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8 July, 09:55

He has $4,200 to invest, for college if he invests 4200 for 3 years and year and earns $630 what is the simple interest rate

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  1. 8 July, 10:07
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    I=Prt

    r=I/Pt

    r=630 / ((4200) (3))

    =0.05*100

    =5%

    the simple interest rate it 5%
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