Exhibit 30-3 Costs of Eliminating:Firm A Firm B Firm C 1st ton of pollution$ 30 $ 50 $ 600 2nd ton of pollution$ 70 $ 90 $ 700 3rd ton of pollution$125 $150 $ 900 4th ton of pollution$200 $250 $1,300 Refer to Exhibit 30-3. What is the cost to Firm B of eliminating 2 tons of pollution?
A. $350
B. $250
C. $300
D. $140
E. $540
Answer: D
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In the figure below, the economy is initially in long-run equilibrium at point A. If there is an adverse supply shock that reduces potential output and shifts the long-run aggregate supply curve from LRAS to LRAS', then there is initially ________ gap and the short-run aggregate supply curve will ________. 
A. an expansionary: eventually shift to SRAS" B. a recessionary; eventually shift to SRAS' C. an expansionary; eventually shift to SRAS' D. a recessionary; eventually shift to SRAS"
Velocity is V, the quantity of money is M, the price level is P, and real GDP is Y. Which of the following formulas is correct?
A) Y = (P × M) ÷ V B) Y = V × M C) Y = (P + M) - V D) V = (P + Y) × M E) V = (P × Y) ÷ M
The first antitrust law in the United States was the
A) FTC Act. B) Clayton Act. C) Sherman Act. D) Robinson-Patman Act.
The following question relate to a community that is circular in nature with a one mile circumference. There are 81 people evenly distributed around the lake where the town is built. The travel cost is $10 per mile, a restaurant costs $100 to set up, and the cost per meal is $2. Calculate the optimal number of restaurants without using the graph. Round off small residuals to the nearest whole number. Show your work.
What will be an ideal response?