The economy of Sunrise Island has the following features: - fixed price level - no foreign trade - autonomous desired investment (I) of $20 billion - autonomous government purchases (G) of $30 billion - autonomous desired consumption (0) of $10 billion - marginal propensity to consume out of disposable income of 0.75 - net tax rate of 0.20 of national income (I) a. Write an equation expressing consumption as a function of disposable income. Write the constant values in billions of dollars. C=I+DYD (Round your response for the intercept to the nearest whole number, and round your response for the slope to two decimal places.) b. Write an equation expressing net tax revenues as a function of national income. T = DY (Round your response to two decimal places.) c. Write an equation expressing disposable income as a function of national income. YD 3 BY (Round your response to two decimal places.) d. Write an equation expressing consumption as a function of national income. Write the constant values in billions of dollars. C=[:+|:|Y (Round your response for the intercept to the nearest whole number, and round your response for the slope to two decimal places.) e. Write an equation for the AE function. Write the constant values in billions of dollars. AE=D+DY (Round your response for the intercept to the nearest whole number, and round your response for the slope to two decimal places.) f. What is the marginal propensity to spend out of national income? The marginal propensity to spend out of national income is D. (Round your response to two decimal places.) 9. Calculate the simple multiplier for Sunrise Island. The simple multiplier for Sunrise Island is D. (Round your response to two decimal places.) Suppose that in an open economy the level of exports is $60 billion and the marginal propensity to import is 30%. The net exports function in this economy can be written as: Not Exports = X - IM Net Exports = $E| billion |:| x Y ( Round your response for the slope term to two decimal places and for the intercept term to the nearest whole number.) Use the line drawing tool to draw and label the net exports function on the graph at right. Make sure that the line starts at Actual National Income level pm and that it crosses the x-axis. Carefully follow the instructions above, and only draw the required objects. Net Exports ($ billions) Net Exports Function Actual National Income ($ billions)