\( \square \% \) of \( \$ 10=\$ 1 \)

To find the percentage represented by the square, you can set up the equation: \( \frac{X}{100} \times 10 = 1 \). Solving this gives \( X = \frac{1}{10} \times 100 = 10\% \). So, \( \square \% \) is 10%. This percentage can be applied in various real-world scenarios, such as calculating tips at restaurants. If you want to leave a 10% tip on a $10 bill, you would simply take \( 10\% \) of \( 10 \), which equals \( \$1 \)! It's a handy number to keep in mind for quick calculations!