Question 1164076
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A party planner charges $7,775 for a formal party for 100 people and $4,025 for 50 people.
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Description gives two points of a line:
(100, 7775)  and  (50, 4025).



{{{highlight(y-4025=((7775-4025)/(100-50))(x-50))}}}
and you can figure out what to do from here,...