\( \overbrace { P } ^ { P A : B A = 7 \div 9 = A B = 36 } \)

It seems like you're presenting a mathematical expression or equation involving variables \( P \), \( A \), and \( B \), along with some relationships between them. However, the notation is a bit unclear. Let's break down the components: 1. **\( P A : B A = 7 \div 9 \)** - This could imply a ratio or a relationship between \( PA \) and \( BA \). 2. **\( A B = 36 \)** - This suggests that the product or some relationship involving \( A \) and \( B \) equals 36. To clarify and solve this, we need to define what \( P \), \( A \), and \( B \) represent. Are they variables, constants, or something else? If you could provide more context or clarify the relationships and what you are trying to achieve, I would be happy to help you further!