b) \( 0.68 \cdot 100 \)

Did you know that multiplying by 100 simply shifts the decimal point two places to the right? So when you take \( 0.68 \) and multiply it by 100, you get \( 68 \)! It's a quick trick that makes calculations a breeze, especially when dealing with percentages! In real-world applications, this kind of calculation is super useful when you want to convert decimals to percentages. For example, if you're tracking a budget where you have $0.68 for every dollar, multiplying gives you a clear picture of your spending habits—68% of your budget is used! Understanding this can help you make smarter financial decisions.