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What is the cost of one roll of plain wrapping paper and one roll of holiday wrapping paper?

What is the cost of one roll of plain wrapping paper and one roll of holiday wrapping paper class=

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texaschic101
3p + 4h = 123
12p + 2h = 240....multiply by -2
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3p + 4h = 123
-24p - 4h = - 480 (result of multiplying by -2)
------------------add
-21p = - 357
p = -357/-21
p = 17 <==== plain wrapping paper (p) is $ 17 per roll

3p + 4h = 123
3(17) + 4h = 123
51 + 4h = 123
4h = 123 - 51
4h = 72
h = 72/4
h = 18 <== holiday wrapping paper (h) is $ 18 per roll

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