Please choose one answer for each question:

In the equation y = Ak0.5, k represents... O a. GDP per person. O b. Capital per unit of output. O c. Labour per capital. O d. Capital per worker.The 45-degree line represents all the points where... G a. Actual expenditure equals actual income. 0 b. Actual expenditure equals planned expenditure. D c. Autonomous expenditure equals actual expenditure. 0 d. Planned expenditure equals actual income. play key roles in the determination of the shape of the aggregate demand curve. O a. Money and financial markets. O b. Input prices and technology. O c. Money and input prices. O d. Technology and financial markets.Within the neoclassical growth model, which of the following variables is not exogenous? O a. The population growth rate. O b. The rate of capital accumulation. O c. All of the others are correct. O d. The saving rate