The correct answer is D. Research shows students who are best at managing their time also have the highest-grade point averages. Studies have shown that time management is highly related to academic performance. This is turn would help students to achieve high grade point averages. 
 
        
                    
             
        
        
        
All these sentences use the word "so" correctly except "Flies breathe through holes in
<span> their abdomen or thorax, so do bees.</span>" So should either begin a new sentence of be preceded by "and". 
        
             
        
        
        
I have learned that when identifying the setting I have to use context clues to help me decide if it a happy, sad, scary, or etc.
        
                    
             
        
        
        
I think the job is 1/5 miles so you have to write it in the numerator and the other variables (speed in this case) to the denominator and then the answer should be 13