How much more, in dollars, did a ton of river rock cost Odalys than a…

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Odalys ordered mulch and river rock, which cost a total of

242. T h e g i v e n e q u a t i o n

22.5x + 26.75y = 242

r e p r ese n t s t h er e l a t i o n s hi p b e tw ee n t h e n u mb er o f c u bi cy a r d so f m u l c h,

, an d t h e n u mb er o f t o n so f r i v er r oc k,

y$, Odalys ordered.

How much more, in dollars, did a ton of river rock cost Odalys than a cubic yard of mulch?

4.25