Problem (D: Personal Mini Warehouse is planning to expand its successful Jeddah business into Yanbu. In doing so, the company must determine how many storage rooms of cach size to build. Its objective and constraints are as follow. Maximize monthly earnings - 90 X1 + 60 X: Subject to: 2x: +4 x: 5400 (advertising budget available) 100 xx + 50 x 58000 (rental limit expected) (rental limit expected) Xi 560 Where: x1 number of large spaces developed X = number of small spaces developed You are requested to help the company to achieve the above stated objective using Linear Programming (LP), ISOPROFIT graphical approach? Problem (2): The Electrocamp Corporation manufactures two electrical products: air conditioners and large fans. The assembly process for each is similar in that both require a certain amount of wiring and drilling. Each air conditioners takes 3 hours of wiring and 2 hours of drilling. Each fan must got through 2 hours of wiring and 1 hour of drilling During the next production period, 240 hours of wiring time are available and up to 140 hours of drilling time may be used. Each air conditioner sold yields a profit of S40. Each fan assembled may be sold for a $30 profit. Formulate and solve this LP production mix situation to find the best combination of air conditioners and fans that yields the highest profit. Use the CORNER POINT graphical approach