Problem
Rose bought a bag of potatoes for \( \$ 6.00 \) and some granola bars for \( \$ 5.25 \) per package. Her total bill was \$74.25. How many packages of granola bars did she buy?
Solution
Step 1 ：Let x be the number of granola bar packages.
Step 2 ：6 + 5.25x = 74.25.
Step 3 ：x = \frac{74.25 - 6}{5.25} = \frac{68.25}{5.25} = 13.
