How do you convert 20% to a decimal?

To convert a percentage into a decimal, you divide the percentage by 100. In this case, to convert 20% to a decimal, you take 20 and divide it by 100. This gives you:

[ 20 \div 100 = 0.2 ]

Therefore, the decimal representation of 20% is 0.2. Understanding this conversion is essential as it lays the foundation for working with percentages in various mathematical contexts, such as financial calculations, statistics, and data analysis. The other options represent different values that do not correspond to the correct conversion of 20%.