7) (5 pts) A country is about to be invaded will naturally stock pile food, but then shortages will set in. Let S be the number of extra people that could be feed (in millions) over and above basic needs. This is food surplus where d is days and S(d) = 3+0.5d -e:0%d. What is the max number of additional people that can be feed and what day does the max supply appear? (round to decimals) 8) (5 pts) A field is to be fenced into 3 lots (sections) using 4000 ft of fence. For what value of x will the Area be maximum? y X