1. The problem is to evaluate the expression $2 + \sqrt{25}$.\n\n2. Recall that the square root function $\sqrt{x}$ gives the non-negative number which, when squared, equals $x$.\n\n3. Calculate $\sqrt{25}$. Since $25 = 5^2$, we have $\sqrt{25} = 5$.\n\n4. Substitute back into the expression: $2 + \sqrt{25} = 2 + 5$.\n\n5. Add the numbers: $2 + 5 = 7$.\n\nTherefore, the value of the expression is $7$.