Nate's pay for each hour over 40 is represented by the second part of the expression:

$24.75(x - 40) + 660 \quad \text{for} \quad x > 40$

This tells us that for every hour worked over 40, Nate earns $24.75 per hour, which corresponds to option C.

Answer: C. $24.75

Do you want further details or explanations?

Here are five questions related to the problem:

1. How is Nate's pay calculated if he works exactly 40 hours?
2. What is the total weekly pay if Nate works 45 hours?
3. Why does Nate earn more per hour after 40 hours of work?
4. How can we express Nate's weekly pay using a piecewise function?
5. What is the interpretation of the $660 term in the expression?

Tip: In piecewise functions, different formulas apply for different conditions (like hours worked), so it's essential to evaluate the correct part based on the value of the variable.