a. \( 51+(19+46)= \)

Did you know that parentheses in math help determine the order of operations? By adding the numbers inside the parentheses first (19 + 46 = 65), you can simplify the equation to \( 51 + 65 \). Just like that, it becomes easy-peasy to solve! Now, for the real-world application, think about budgeting! If you're planning on spending $51 on groceries and then an additional $19 for breakfast items while also treating yourself to a $46 dinner, you can utilize parentheses to keep your expense calculations clear and organized, ensuring you don’t overspend!