A certain metal casting is at $900^{\circ} \mathrm{C}$ and is cooling so that each minute its temperature is $7.5 \%$ less than the previous minute. Find its temperature after 30 minutes? Use three significant digits.

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The Answer of A certain metal casting is at $900^{\circ} \mathrm{C}$ and is cooling so that each minute its temperature is $7.5 \%$ less than the previous minute. Find its temperature after 30 minutes? Use three significant digits.

A Certain Metal Casting Is At 900∘C900^{\circ} \mathrm{C}900∘C And Is Cooling So That Each Minute Its Temperature Is

A Certain Metal Casting Is At $900^{\circ} \mathrm{C}$ And Is Cooling So That Each Minute Its Temperature Is