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Mathematics 17 Online
OpenStudy (anonymous):

The cost per minute of a conference phone call, originally $2.80, increased by 20%. What is the new price? A. $3.00 B. $3.20 C. $3.26 D. $3.36

OpenStudy (anonymous):

$2.80 + 20% = 2.80 + .56 = D

OpenStudy (anonymous):

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