Identify the part, whole, and percent in the following statement: Find 15% of 750.

In the statement "Find 15% of 750":

Part: 15%
Whole: 750
Percent: 15%

Write a percent equation that can be used to solve the following problem: 820 is 20% of what number?

Let "x" represent the unknown number.

The percent equation would be:
20% of x = 820

Part: The part in the statement is "15%."

Whole: The whole in the statement is "750."
Percent: The percent in the statement is also "15%."