20
google search
Google search results:
1: https://web.lemoyne.edu/courseinformation/mth%20112/rinaman/instman/SOLUTION.PDF
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2: https://www.math-only-math.com/to-find-the-percent-of-a-given-number.html
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3: https://economics.mit.edu/files/13541
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4: https://www.mitty.com/assets/files/academics/10-03-MathKey.pdf
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5: https://www.scholastic.com/unexpectedmath/ratio-challenge/pdfs/ratio-design-challenge-answer-key.pdf
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6: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-ratios-prop-topic/cc-6th-percent-problems/v/solving-percent-problems-2
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7: https://bridgeprepriverview.com/ourpages/auto/2020/2/4/54307042/Student%20textbook.pdf
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8: https://www.varsitytutors.com/intermediate_geometry-help/how-to-find-the-percentage-of-a-sector-from-an-angle
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9: https://tasks.illustrativemathematics.org/content-standards/tasks/496
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10: https://www.mcs4kids.com/documents%5Cmath%5Ck-6%5CMath%20Content%5CPercents%5CSolving%20Percent%20Problems%20-%20Using%20Parallel%20Scales.pdf
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11: https://www.louisianabelieves.com/docs/default-source/assessment/grade-6-answer-key.pdf?sfvrsn=293b981f_2
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