Answer:
15
Explanation:
The total part of purple paint is the sum of the blue paint aprts nad the red paint parts.
There are:
-3 blue parts
-12 red parts
To find the total purple paint parts we add these together to get:
![3+12 = 15](https://img.qammunity.org/2023/formulas/mathematics/college/dun9nglcm2293qfb3cdswgz9g1spyp1oso.png)
So there are 15 total purple parts!
Hope this helps! :3