given consumption function ,investment government purchase and taxes with the following function C= 90 + 0.75 (Y-T) I= 120 G =180 T=80 a. the aggregate demand function b. the equilibrium level of income c. the equilibrium level of consumption d. the equilibrium level of aggregate demand e. draw the graph of consumption and aggregate demand to show the equilibrium level of income and consumption

Suppose that a paving company produces paved parking spaces (q) using a fixed quantity of land (t) and variable quantities of cement (c) and labor (l). the firm is currently paving 1,000 parking spaces. the firm's cost of cement is $3 comma 600.003,600.00 per acre covered (c) and its cost of labor is $35.0035.00/hour (w). for the quantities of c and l that the firm has chosen, mp subscript upper c baseline equals 60mpc=60 and mp subscript upper l baseline equals 7mpl=7. is this firm minimizing its cost of producing parking spaces?