#### Explanation:

To determine the new price, we need to calculate the amount of the discount.

$x = 30 \times \frac{15}{100}$

$x = 3 \cancel{0} \times \frac{15}{10 \cancel{0}}$

$x = 3 \times \frac{15}{10}$

$x = \frac{45}{10}$

$x = 4.5$

Since the original price was $30 and the discount amount is $4.50, the new price will be:

$30 - 4.5 = 25.5$