1. The problem is to evaluate the expression $2\$5\$$. 2. Since the dollar signs are not part of a math expression but appear to be a formatting or typing error, we interpret the expression as simply the multiplication of 2 and 5. 3. The multiplication formula is $a \times b = c$ where $a=2$ and $b=5$. 4. Calculate $2 \times 5 = 10$. 5. Therefore, the value of the expression is $10$.