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A cell phone company charges a monthly fee of $20 for the first 1800 texts and 40 cents for each additional message. Miriam's bill for the month is $48.40. How many text messages did she send?

User Vladzaba
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48.40- 20= 28.40÷ 0.40= 71+1800= 1871 texts sent
User Tosha
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