To find out how many of the movies in the Smith family's collection are action movies, we can calculate it using the given percentage.
The Smith family has 80 movies in total, and action movies make up 25% of that collection.
To find the number of action movies, we calculate:
\[ \text{Number of Action Movies} = \text{Total Movies} \times \left(\frac{\text{Percentage of Action Movies}}{100}\right) \]
Substituting the values:
\[ \text{Number of Action Movies} = 80 \times \left(\frac{25}{100}\right) = 80 \times 0.25 = 20 \]
So, the Smith family has 20 action movies in their collection.