<span>Al─Khwarizmi wrote an algebra textbook that was the standard for centuries during the golden age of islam :)</span>
        
                    
             
        
        
        
It was a safety net against poverty for people over the age of 65, as well as being a welfare system for disabled people.
        
             
        
        
        
Answer:
Answer letter (D)
Explanation: 
The Consumer Price Index (CPI) is a tool that examines the average of prices of a basket of consumers goods and services.
The CPI is used as an economic indicator and is used as a measure of inflation and effectiveness of the government’s economic policies.
 
        
             
        
        
        
After the War of 1812, America' sense of social and political unity was at an all time high, especially after fending off the British for the second time in less than 50 years. To describe this period of American unity, a Boston newspaper described this time of the "Era of Good Feelings." This title represented both the unity in America's moral after defeating the British, but it also refers to the lack of arguing/fighting in politics. This era brought the collapse of the Federalist party, with only the Democratic-Republican party remaining. This party began to unit and settle several differences that divided them prior to the war. This era lasted less than a decade and would precede some of the most divisive eras in American history.