The ratio of sandwiches to chicken wings can be expressed as the number of sandwiches divided by the number of chicken wings.
Maria is making 40 sandwiches and 25 chicken wings, so the ratio is:
\[ \text{Ratio of sandwiches to chicken wings} = \frac{40}{25} \]
This can be simplified by dividing both sides of the ratio by 5:
\[ \frac{40 \div 5}{25 \div 5} = \frac{8}{5} \]
Thus, the ratio of sandwiches to chicken wings is \( 40:25 \).
So, the correct response is:
40:25 (ratio of 40 to 25)