If a Cube of a Certain Metal Increases Its Volume $\circ$

If a cube of a certain metal increases its volume from 15 cm³ to 17 cm³ as the temperature increases from 12 ^$\circ$ C to 28 ^$\circ$ C,what is the metal's linear expansion coefficient?

A) 2.8 * 10^{-3 $\circ$} C^-1
B) 4.0 * 10^{-3 $\circ$} C^-1
C) 7.4 * 10^{-3 $\circ$} C^-1
D) 8.3 * 10^{-3 $\circ$} C^-1

Correct Answer:

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