Make sure the answers are well-organized and you can plot GRAPHS by hand.MAKE SURE THAT you are not making a software that does the plotting write it by hand. Also, solutions (if applicable) must include managerial statements which show the results of the analyses in plain language. SHOW ALL YOUR WORK PLEASE:)) The PW store is a large retail distributor of the WOW brand of vinyl wall coverings. PW will enhance its citywide image in Vancouver if it can outsell other local stores in total number of rolls of WOW next year. It is able to estimate the demand function (i.e. objective function) as follows: Number rolls of WOW sold = 20*dollars spent on advertising + 6.8*dollars spent on in-store displays + 12*dollars invested in on-hand wallpaper inventory - 75,000*percentage markup taken above wholesale cost of a roll. If $8000 dollars is spent on advertising then the impact will be 20*8000 = 160,000 rolls of WOW sold. If the percentage markup is 40% then this will reduce/decrease the number of WOW sold by 75,000*0.4 = 30,000 rolls. The store budgets a total of $34,000 for advertising, in-store displays and on-hand inventory (i.e. stock) of WOW wallpaper for next year. It decides it must spend at least $6,000 on advertising; in addition, at least 5% of the amount invested in on-hand inventory (i.e. stock) should be devoted to displays. Markups on WOW seen at other local stores range from 30% to 55%. PW decides that its markup had best be in this range as well. 1) Formulate algebraically a Linear Programming model for this problem. The objective is to maximize the number of rolls of WOW sold. 2) Formulate this same linear programming problem on a spreadsheet and SOLVE using Excel Solver (Provide the corresponding "Excel Spreadsheet" and the "Answer Report"). Include "managerial statements" that communicate the results of the analyses. (i.e., describe verbally/ narratively the results). 3) What is the difficulty with the answer of the optimal solution? What constraint would you add