Total Cost of Fruit

Julia has $30 to spend on fruit. She can either buy apples or bananas. An apple costs $2 and a banana costs $1. If she buys $x$ apples and $y$ bananas, which of the following equations represents the total money she spends on fruit?

To express her total spending mathematically, you can create an equation based on the number of apples she buys multiplied by the cost of an apple, plus the number of bananas multiplied by their cost.