Final answer:
To solve for x in the equation x-16.15=24.35, add 16.15 to both sides of the equation. The correct answer is x=40.5.
Step-by-step explanation:
To solve for x in the equation x-16.15=24.35, you need to isolate x on one side of the equation. Begin by adding 16.15 to both sides of the equation, which gives you x-16.15+16.15=24.35+16.15. This simplifies to x=40.5. Therefore, the correct answer is d. x=40.5.