crwdns2934241:0crwdne2934241:0 Joshua Elliott

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My 9th grade Math teacher just gave me a TI-82 Calculator, when we opened the battery cover, the batteries were beyond corroded, we took them out, and took some donor batteries, put them in, and pressed the on button. And I get lines throughout the screen, so I took it apart, and couldn't find anything wrong with it. I don't know what is wrong.

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