The sum of 12 and \( b \). Evaluate this expression when \( b=4 \).

To evaluate the expression when \( b=4 \), simply substitute \( b \) with 4 in the expression, which gives you \( 12 + 4 \). Adding those together, you get 16. So, the sum of 12 and \( b \) when \( b=4 \) is 16! Math is all about practice! Next time, try writing out each step to avoid mistakes, like forgetting to add or misplacing your numbers. It helps build a strong foundation for bigger problems down the line!