The social system approach is an example of what type of method?

Before tuberculosis was understood to be a communicable disease, and before the discovery of antibiotics to treat it, a major outbreak could kill or cripple a significant portion of a nation’s labor force. how would such an event affect the economy? illustrate the effect by dragging to shift either the aggregate demand curve or the long-run aggregate supply curve.

What happens in puerto rico in 2012 to celebrate the anniversary of clemente's 3000th hit

8y=-6x+24 whats the slope and y-intercept