document.write( "Question 977210: Barney is taking part in a six week program to build rock hard abs. Each day he is going to do 3 more sit-ups than the day before. If he does 10 sit-ups on the first day, how many will be have to do on the last day of the challenge.\r
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Algebra.Com's Answer #647760 by Brainy_Desi(1)\"\" \"About 
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