Answer:
C. a signature that means 4/4 time
Explanation:
There are four beats per measure. All the notes in the measure must add up to equal four beats, no more, no less. 
 
        
                    
             
        
        
        
Multiply all the side lenghths toghether
        
                    
             
        
        
        
Answer:
DNA analysis is a reliable method for solving unidentified missing persons cases
 
        
             
        
        
        
Answer and Explanation:
Determined to become a piano virtuoso—Robert Schumann, who was a German pianist, composer and music critic—initially went to the University of Leipzig to study law—but he did so under the influence of his family. Schumann later abandoned the study of law, and worked on his dreams to become virtuoso pianist. However, he had a hand injury which ended aspirations to and made him to concentrate on composing. He became interested in the works of Mendelssohn, Schubert, Chopin, Berlioz and Brahms, amongst other composers.