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MISSED THIS? Read Section $1\mathrm{.}7($Pages $20-26)$: Watch KCVs $1\mathrm{.}6,1\mathrm{.}7$ IWEs $1\mathrm{.}5,1\mathrm{.}6$

Calculate the following to the correct number of significant figures

Part A

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Part B

$(4\mathrm{.}25{10}^5)(8\mathrm{.}9{10}^2)$

$477\mathrm{.}5$

$478$

$5{10}^2$

$4\mathrm{.}8{10}^2$

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