(f) \( 0.25 \% \) of 320

To find \( 0.25\% \) of \( 320 \), you can convert the percentage to a decimal by dividing by \( 100 \). So, \( 0.25\% = 0.0025 \). Then you multiply \( 320 \) by \( 0.0025 \): \[ 320 \times 0.0025 = 0.8 \] So, \( 0.25\% \) of \( 320 \) is \( 0.8 \). But did you know that percentages like \( 0.25\% \) can be found by using a simple reasoning technique? Just think of \( 1\% \) as a whole. Here, to find a quarter of it (which is \( 0.25\% \)), you can first calculate \( 1\% \) of \( 320 \), which is \( 3.2 \), and then divide that by \( 4 \) (since \( 0.25\% = \frac{1}{4}\% \)). Voilà, you arrive at \( 0.8 \) again! For anyone who enjoys math or is just looking to get better at it, diving a little deeper into applications of percentages can be super rewarding. From calculating discounts while shopping to figuring out interest rates for savings accounts, percentages pop up all around us in everyday life. Take a moment to observe how often you use this concept and improve your numerical skills!