•explain how investment in human capital and willingness to seek new economic
opportunities produced economic improvement for african-americans

Explanation:

Human capital is the stock of habits, knowledge, social and personality attributes embodied in the ability to perform labour so as to produce economic value. Human capital is unique and differs from any other capital. It is needed for companies to achieve goals, develop and remain innovative.

Human capital affects economic growth and can help to develop an economy by expanding the knowledge and skills of its people. The concept of human capital is the realization that not everyone has the same skill sets or knowledge. Also, the quality of work can be improved by investing in people's education.

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do