Consider the economy of Citronia, where citizens consume only oranges. Assume that oranges are priced at $1 each. The government has devised the following tax plans: Plan A Consumption up to 1,000 oranges is taxed at 50%. Consumption higher than 1,000 oranges is taxed at 20%. Plan B Consumption up to 2,000 oranges is taxed at 10%. Consumption higher than 2,000 oranges is taxed at 25%. Use the Plan A and Plan B tax schemes to complete the following table by deriving the marginal and average tax rates under each tax plan at the consumption levels of 600 oranges, 1,200 oranges, and 2,500 oranges, respectively.

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy costs, and each square foot of wall insulation costs $1 and saves you an average of $0.20 per year in energy costs.† your mansion has 150 light fittings and 3000 sq ft of uninsulated exterior wall. to impress your friends, you would like to spend as much as possible, but save no more than $750 per year in energy costs (you are proud of your large utility bills). how many compact fluorescent light bulbs and how many square feet of insulation should you purchase? how much will you save in energy costs per year? (if an answer does not exist, enter dne.)

What is a sort of auction for stocks in which traders verbally submit their offers?

Plastic and steel are substitutes in the production of body panels for certain automobiles. if the price of plastic increases, with other things remaining the same, we would expect: a) the demand curve for plastic to shift to the left. b) the price of steel to fall. c) the demand curve for steel to shift to the left d) nothing to happen to steel because it is only a substitute for plastic. e) the demand curve for steel to shift to the right