Hi Audrey, you need to be more specific. Are you referring to solving systems of linear equations with 3 unknowns, versus a system to 2 unknowns?
Audrey D.
asked • 05/09/16How do I solve this problem?
A town had 2120 acres of pine trees 40 years ago. Only about 13% of the pine trees remain. How many acres of pine trees remain?
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