0
Anonymous
42 - 30% = 42 x (1 - (30/100)) = 42 x 0.7 = 29.4
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30.
42/30 = 1.4 = 140 %
420-42 = 378
48.00 - (30%) = 33.60
30% off of 42 = 70% of 42 = 42*70/100 = 29.40