Can you help with parts A through D?

Given the graph below: 1 K Units of capital s4 |144 | 2E0 400 12:1 160 Units of labor a. If the cost of capital, r, is $800 per unit, what is the cost per unit of labor (i.e., what is w)? Explain how you found your answer. Hint: use the intercept ofthe isocost. Remember. the Jewel ofcost is constant stung an isomer. .5. What is the Marginal Rate of Technical Substitution at input combination A? How did you get this answer? How would you interpret this number? Hint: take advantage oftt'te fact that two curves have the some slope tfthey are tangent. e. Is point B the optimal input bundle for producing 20 units? Why or why not? Explain. d. 1What is lowest possible cost of producing 20 units"?I How did you find your