Answer: 125
Explanation: If you divide 400 by 3 you get 375, then you divide 375 by 3 and you get 125.
I thinks it's b because it's the one that makes the most sense
The correct sentence is the second one "She built a high-performance CPU".
The first sentence should not contain a comma and is incorrect. The third sentence is incorrect because there shouldn't be a dash before CPU. The fourth sentence is incorrect because CPU is not written with dashes.
