Question 1194590
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<pre>

If it is about  {{{highlight(simple_interest)}}}  (as your post says it),

then use the formula for the future value of a simple interest account 
    
    FV = P*(1+rt),


where P is the principal amount;  r is the annual percentage as a decimal; t is the time in years.


In your case,  the given values are

    FV = 7000  dollars;

    r = 4% = 0.04;

    t = {{{22/12}}} years.


     P is unknown principal (how much to invest).


So, your equation is

    7000 = P*(1 + 0.04*(22/12)}}} = 1.07333*P.


From this equation,

    P = {{{7000/1.07333)}}} = 6521.60 dollars.


<U>ANSWER</U>.  You should invest  $6521.60: it is your principal.
</pre>

Solved.


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To see many other similar &nbsp;(and different) &nbsp;solved problems on simple interest accounts, &nbsp;look into the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/percentage/lessons/Simple-interest-percentage-problems.lesson>Simple interest percentage problems</A> 

in this site.


Learn the subject from there.