evaluate. $9 + 3 \\cdot 5^2$

$evaluate. $9 + 3 \\cdot 5^2$$

evaluate.
$9 + 3 \cdot 5^2$

First, we need to evaluate the exponent part of the expression. The exponent here is $5^2$. By the definition of exponentiation, $5^2 = 5\times5=25$.

Next, we multiply 3 by the result of the exponentiation. So, $3\times25 = 75$.

Finally, we add 9 to the result of the multiplication. So, $9 + 75=84$.

84