Question 1131799
Stephanie: 14p + 9h = 446 (1)
Jenny: 8p + 3h = 212 multiply all times -3 and add to equation (1)
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14p + 9h = 446
-24p +-9h = -636
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-10p + 0h = -190
-10p = -190
p = 19 the rolls of plain paper cost 19 each
Now take one of the original equations, any one, and substitute for p to solve for h:
14p + 9h = 446
14(19) + 9h = 446
266 + 9h = 446
h = 20 the rolls of holiday wrapping paper cost 20 each
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Check: 
8p + 3h = 212
8(19) + 3(20) = 212 Correct, you now have the correct answers.