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The function is $\"\"$ .

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(a) Find $\"\"$ .

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$\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Find $\"\"$ .

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$\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Find $\"\"$ .

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$\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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(b) The investment account earns interest compounded quarterly.

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The composition $\"\"$ represent compounded interest for $\"\"$ months.

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The composition $\"\"$ represent compounded interest for $\"\"$ months.

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The composition $\"\"$ represent compounded interest for $\"\"$ months.

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The compositions represent the compounded interest for $\"\"$ months, 9 months, and 1 year. \ \

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(c) The annual percentage yield is the percentage growth after one year, in this case about $\"\"$ .

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(a) $\"\"$ , $\"\"$ and $\"\"$ .

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(b) The compositions represent the compounded interest for $\"\"$ months, $\"\"$ months, and $\"\"$ months.

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(c) The annual percentage yield is the percentage growth after one year, in this case about $\"\"$ .