7*7:2

To solve the expression \( 7 \times 7 \div 2 \), follow the order of operations:

1. First, multiply \( 7 \times 7 = 49 \).
2. Then, divide \( 49 \div 2 = 24.5 \).

So, \( 7 \times 7 \div 2 = 24.5 \).