7:7•52

The expression \( 7:7 \cdot 52 \) can be simplified as follows:

1. First, interpret \( 7:7 \) as \( \frac{7}{7} \), which equals \( 1 \).
2. Now, multiply that by \( 52 \):

\[ 1 \cdot 52 = 52 \]

Therefore, \( 7:7 \cdot 52 = 52 \).