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Which equation can be used to find the answer? After two months, Rachel has saved enough money to buy an MP3 player. During the second month, she saved $87 and she pays $199 for the MP3 player. How much did Rachel save during the first month? A. m = 87 • 2 m = 174 $174 B. 199 + 87 = m m = 286 $286 C. m + 87 = 199 m = 112 $112 D. m – 87 = 199 m = 287 $287
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