Ok so let me explain this. <span>In the library of congress system of classifying books, every book receives a classification number that starts with 1-3 letters. Those letters give you a general idea of topic.</span><span> The "Teaching New Math" book It's in the Q's for sciences, and more specifically QA's under math. So the answer you will be looking for is QA. Hope this can help you</span>
        
                    
             
        
        
        
Answer:
interest groups
Explanation:
Interest groups are groups of people that have a similar concern as the people. The interest groups communicate with and for the public.
 
        
             
        
        
        
<u><em>The president of the United States </em></u>is the head of State and Government of the United States. It is the highest political office in the country by influence and recognition. The president leads the executive branch of the federal government. Among other powers and responsibilities, Article II of the Constitution of the United States entrusts to the president the "faithful execution" of the federal law, makes the president the commander-in-chief of the Armed Forces, authorizes him to appoint executive and judicial officers with the advice and consent of the Senate places it at the forefront of the foreign policy of the United States, and allows the president to grant pardons or moratoria.
<u><em>The vice president of the United States</em></u> is the person with the second highest position in the executive branch of the Government, after the president of the United States. The Vice President exercises the Presidency definitively when the president dies, resigns or is removed from office for a trial. In addition, the vice president acts as president of the United States Senate but does not have the right to vote except to resolve ties, as required by Article I of the Constitution of the United States.