Printing one page cost $0.008. find the cost of printing an 85-page book. what is the difference in cost for printing a 120-page book and a 100-page book?

One page = $0.008

85 Pages = $0.008 x 85
= $0.68

120 Pages = $0.008 x 120
= $0.96

100 Pages = $0.008 x 100
= $0.8

Differences between printing 120 pages and 100 pages : the cost of printing 120 minus the cost of printing 100 pages
$0.96 - $0.8 = $0.16

Ithink the right answer could be 50%