1. Not sleeping 
2. His brain cant function properly due to him being tired
3. Get some sleep or get a schedule to efficiently practice mathematics
Pls mark as brainliest
        
             
        
        
        
Topic headings in your outline 
So B 
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Tuition : college
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Assuming this is in regard to "I Hear America Singing" by Walt Whitman, and "I, Too", by Langston Hughes. 
The main point that Hughes makes in "I too (Sing, America)" is that the experience of many marginalized groups are not acknowledged in the national narrative. He directs this at Whitman's poem, pointing the many groups he does not mention singing. Hughes makes the point that American needs to celebrate all its people, and not just the ones who had a voice at the time. 
Best answer is D) <span>America needs to celebrate its people.
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