McDonald$$s$,$ with more than $40,000$ outlets in the U$.$S$.$ is planning for a new restaurant in Pittsburg, Pennsylvania. Three locations are being considered. The following table gives the factors for each site:

FACTOR

WEIGHT

WESTSIDE MALL

DOWNTOWN

NORTHSIDE MALL

Space

$\mathrm{.}20$

$80$

$70$

$70$

Costs

$\mathrm{.}25$

$20$

$60$

$70$

Traffic Density

$\mathrm{.}20$

$80$

$70$

$60$

Neighborhood Income

$\mathrm{.}25$

$60$

$70$

$80$

Zoning Laws

$\mathrm{.}15$

$90$

$40$

$80$

At what site should McDonald$$s open the new restaurant? Show all your works.

$(9)$ XYZ Company is considering for expanding its new plant. Its favorable sites for expansion are Greenwood, Indianola and Greenville. The company has to select one of these sites given the following information:

$(1)$ The company is expecting to sell $8000$ units per year.

$(2)$ Fixed costs per year at Greenwood, Indianola and Greenville are $$55,000,$ $$85,000$ and $$110,000$; and variable costs are $$65,$ $$100$ and $$80$ per unit respectively.

$(3)$ The expected selling price for each unit $$190.$

Based on the expected profit of each location, which site will be selected for plant expansion? $($Show all your work$).$