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Old 11-29-2005   #1
Join Date: Sep 2005
Posts: 5
Default percent increase

The first light bulb was made in 1834. In 1834 the light first lightbulb cost 0.05.
But now in 2005 the light bulbs cost about $7.00. Find the percent increase of the light bulb.
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Old 12-02-2005   #2
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Join Date: Sep 2005
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Default Bea's Reply

$7.00- $0.05= $6.95
0.05^ 6.95= a 139% increase
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