charliebeth charliebeth

17-08-2021
Mathematics

contestada

Petra invests $10 800. After 4 years she has earned $3240 in interest.
At what annual rate of interest did she invest her money?

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jhuwwkka jhuwwkka

17-08-2021

The answer is 72 because 10*8 is 109. Hope that helped

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