Totally Serial Enterprises is considering the two mutually exclusive projects below. The cash flows from the projects are summarized below. Year ManBearPig Project Cash Flow Solar Car Cash Flow 0 -$100,000 -$200,000 1 30,000 55,000 2 30,000 55,000 3 45,000 75,000 4 45,000 90,000 at what interest rate do the two projects have the same NPX

Which of the statements best describes why the aggregate demand curve is downward sloping? an increase in the aggregate price level causes consumer and investment spending to fall, because consumer purchasing power decreases and money demand increases. as the aggregate price level increases, consumer expectations about the future change. as the aggregate price level decreases, the stock of existing physical capital increases. as a good's price increases, holding all else constant, the good's quantity demanded decreases.