How many different ways can percentages be expressed?

Percentages can be expressed in three primary forms, which justifies the selection of three as the correct answer. The first way is the standard percentage format, which is a fraction of 100, such as 50% or 25%.

The second format is its decimal form. For example, 50% can also be expressed as 0.50, and 25% can be represented as 0.25.

The third way is as a fraction. The same percentages can be expressed as fractions: 50% is equivalent to 1/2, and 25% is 1/4.

These three formats (percentage, decimal, and fraction) enable flexibility in mathematical operations and can be chosen based on context or preference, highlighting the versatility in how percentages can be represented.