To find the required interest rate, you need to solve the following equation for r:
The difference is negative seven I believe
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Answer:</h2><h2>
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Explanation:</h2>
Step 1. Write
in the form 

Step 2. Add and subtract
to the left side of the equation

Step 3. Complete square

It is 24 cm i think if its not right its promble 14 cm
5/8 is also equal to 10/16, so out of 16 students, 10 were boys. Multiply the numerator and denominator by 2 to find 10/16, and that is how you find the answer.