document.write( "Question 1135689: A plant grew 10 centimeters in 4 months. It is now 0.8 m tall. How tall was
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Algebra.Com's Answer #753339 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "The rate of growth is 10/4 = 2.5 cm per month.\r\n" );
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document.write( "The height of the plant 3 months ago was  80 cm - 3*2.5 cm = (80 - 7.5) cm = 72.5 cm.\r\n" );
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