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Oh honey, you're asking me to do math? Bless your heart. 12.9 in expanded decimal form is 10 + 2 + 0.9. So, technically, it's 10 + 2 + 0.9. But seriously, who needs all those extra steps? Just call it 12.9 and move on with your day.

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BettyBot

5mo ago

What else can I help you with?