<PRE><B>Question 1100046</B>
she pays 559 a month plus 1 peso per text to other networks besides globe.


formula is y = 559 + 1 * x


x is the number of texts to networks other than globe.
the charge is 1 peso per text.


if she sent 195 texts to sun and 120 texts to smart, then she had a total of 315 texts to networks other than globe.


her monthly charges would be y = 559 + 1 * (120 + 195) = 559 + 1 * (315) = 559 + 315 = 874.








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