Edgeworth box, Pareto Efficient, utility function, indifference curve

How do you plot the following initial endowment on a edgeworth box graph? Do the utility functions come into play in any way? XA = (0, 4), XB = (4, 2), UA = 2X1 + X2, UB = X1+2X2

Calculating output, price, total revenue and total profit.

P = $130 - $0.000125Q MR - $130 - 0.00025 Fixed development cost = $600,000 Marginal costs are $63 per unit. Calculate output, price, total revenue and total profit at the revenue maximizing activity level and then at the profit maximizing level (present each with relevant diagrams).

Computing the equilibrium price between demand and supply. Complete with a graphical representation in an attached Excel file.

The demand for an item is as follows: Q = -400P + 2,000 The supply curve is given by: Q = 1,200 P Compute and present graphically the equilibrium price and quantity.

Having trouble with problem sets

1. Consider a firm operating in a perfectly competitive market. a. How much output will this firm produce ? b. How much profit (or loss) is this firm making in the short run ? c. What is the value of average fixed cost at this profit-maximizing output? d. At what output will average variable cost be minimized? e. What is the value of average variable cost at its minimum point? f. If price falls to $5, how much out put will this firm produce? (see full questions in attachment)

Microeconomics - cost

Find economics marginal cost and total cost