At a selling price of sh. 400 per unit, the expected sales of a product would be 10000 units, but sales would fall to 8000 units if the selling price roses to sh. 500. The demand function is estimated to be a linear model. The total cost function is c(x) =15000+18x where x is number of units. i) Determine the total profit function (ii) Determine the unit sales and price which will maximize profit and calculate the maximum profit.​

Which statement describes a monopoly? many firms produce identical products with no control over the market price. many firms produce differentiated products with control over market price. a single firm produces a product with no close substitutes and control over the market price. a single firm produces a product with many close substitutes and limited control over the market price.

Emily sold the following investments during the year: stock date purchased date sold sales price cost basis a. 1,000 shares dot com co. 03-21-2007 02-04-2018 $20,000 $5,000 b. 500 shares big box store 05-19-2017 01-22-2018 $8,200 $7,500 c. 300 shares lotta fun, inc. 10-02-2017 09-21-2018 $3,000 $4,500 d. 700 shares local gas co. 06-17-2017 11-11-2018 $14,000 $17,000 for each stock, calculate the amount and the nature of the gain or loss.

%of the world's population controls approximately % of the world's finances (the sum of gross domestic products)" quizlket