Who’s the president of China

Consider the demand for an inferior a good illustrated in the graph below suppose income decreases what effect would this have on the graph

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.

Who did the first work in creating vaccines