7. Find the smallest non-zero whole number which
can be multiplied by 112 to give a cube number.

28 x 784

Step-by-step explanation:

Now 7 remains without a pair and therefore 7 should be multiplied to 112 to make it a perfect square. Similarly 28 should be multiplied to 784 to make it a perfect cube.

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one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.