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Percentages, ratios, and proportions come up in about five SAT Math problems — sale prices, markups, tax, tips, unit conversions, and successive percent changes (a classic trap: a 60% markup followed by 25% off is NOT 35%). Word problems dominate. Difficulty adapts to your accuracy, each question includes a full solution, and an AI tutor helps if you miss one — teaching the reasoning rather than just revealing the answer.