Svetlana Z. answered 10/27/15
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5.0
(375)
Female Engineer, UC Berkeley PhD, 30+years industry 1700+ hours tutor
If the club pays $281.35 for 75 posters, then one poster will cost:
$281.35 / 75 = $3.75133
The price for 100 posters will be the price of one poster, multiplied by 100 (the amount that you want):
Price of 100 posters = $3.75133 x 100 = $375.13