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Math Help???????

Find how long it takes $2000 to double if it is invested at 7% interest compounded semiannually.
Use the formula
A=P  (  1- r/n) nt  to solve the compound interest problem
It will take approximately ????? years

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Regina G. | Biotech Grad with Homeschool Experience, Math and Science FocusBiotech Grad with Homeschool Experience,...
5.0 5.0 (279 lesson ratings) (279)
I answered on the other question you asked. Double-check the formula you put here, as I think it needs a plus sign, in the parentheses. 
Also, use the other problem to guide you through this one. I hope you'll share your work, so we can help you through this one if you get stuck. :)