Answer
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Step 1:I'll solve this step-by-step using the specified LaTeX formatting guidelines:
Step 2:: Understand the Problem
To find 20% of 90, we need to multiply 90 by 0.20 (which is the decimal equivalent of 20%)
Step 3:: Convert Percentage to Decimal
0.20 = \frac{20}{100}
Step 4:: Multiply 90 by 0.20
90 \times 0.20 = 18
Final Answer
Verification: - 20% means \frac{20}{100} of the total - 90 \times \frac{20}{100} = 18 - This confirms our calculation is correct
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