D Question 7 Advertising Jesaki Inc will sell N units of product after spending $1: thousand in advertising, as given by N=75ww2. Use differential approximations to estimate the increase in sales that will result by increasing the advertising budget from $10,000 to $10,155. Round t0 the nearest dollar. $ E _ Average Cost Jester Sports manufactures tennis rackets. The total cost of producing a: rackets per hour is given by C(x) : 0.47 32+ 4.2 a: + 431. C(m) The average cost per racket at production level a: rackets per hour is 5(13) = 27 Use differential approximations to estimate the change in average cost per racket if the production is increased from 20 per hour to 23 per hour. Round to the nearest cent. 35 per racket NOTE: Your answer may be negative. E Revenue, Cost, and Prot Yaster Electronics manufactures and sells a: televisions per month. The cost and revenue in dollars are given by C(27) = 73,553 + 61 a: and Rm) 2 191 a: - 0.044 932. Use differential approximations to estimate the change in prot if production level is increased from 1,500 to 1,520. Round to the nearest dollar. $ NOTE: Your answer might be negative. Question 10 5 pts Marginal Prot Yaster Breakfast Supplies is planning to manufacture and market a new toaster. After conducting extensive market surveys, the research department provides the following estimates: . a weekly demand of 308 at a price of 15 per toaster . a weekly demand of 208 at a price of 16 per toaster The nancial department estimates that weekly xed costs will be $1,399 and variable costs (cost per unit) will be $4. Assume: . the relationship between price and demand is linear - the cost function in linear Use your models to predict the marginal prot when Yaster is producing and selling 258 toasters per week. Round to the nearest cent. 35 per toaster