Question 1006039
p+c=108
p=108-c
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5p+2.50c=345
5(108-c)+2.50c=345
540-5c+2.50c=345
-2.50c=345-540
c=-195/-2.50
c=78 copies
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p=108-78=30 pens
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5p+2.5c=345
5*30+2.50*78=
150+195=345 total