What was the price of US dollar against mark on Monday？A．1.53 marks.B．1.57 marks.C．1.55 ma

A. The Adding Machine by Elmer Rice

B. Beyond the Horizon by Eugene O' Neill

C. What Price Glory by Maxwell Anderson

D. The Show-off by George Kelly

E. They Knew What They Wanted by Sidney Howard

(1)假设某厂商的产量函数为q=9x^1/2,在短期，固定成本为1000美元，x为可变投入，其成本为4000美元/单位。生产q单位产品的总成本为多少？[即求出总成本函数C(q)]

(2)写出供给曲线方程。

(3)如果价格为1000美元，厂商产量为多少？利润水平为多少？在成本曲线图上表示出你的结论。

a. Suppose that a firm's production function is q=9x^1/2in the short nun, where there are fixed costs of $ 1000, and x is the variable input whose cost is S 4000 per unit. What is the total cost of producing a level o[ output q？ In other words, identify the total cost function C(q)？

b. Write down the equation for the supply curve.

e. If price is $ 1000, how many units will the firm produce？ What is the level of profit？ Illustrate your answer on a cost - curve graph.

A.price

B.fare

C.fee

A.unique

B.constant

C.stable

D.eventual

A.price

B.tax

C.weather

D.sports

A.Is it the sale price？

B.What’ does it come to？

C.How much do you charge for it？

D.Is it expensive？

A.maximum

B.preserve

C.reserve

D.conserve