Posted by Mari on Thursday, January 19, 2012 at 8:32pm.
Last month, Stacie spent $57 on 4 allergy shots and 1 office visit. This month she spent $9 after 1 office visit and a refund for 2 allergy shots from her insurance company. How much does an office visit cost? An allergy shot?

Algebra  bobpursley, Thursday, January 19, 2012 at 8:34pm
57=V+4A
9=V2A
subtract the equations
48=6A solve for A, then go to equation 2 and solve for V

Algebra  Mari, Thursday, January 19, 2012 at 8:39pm
Thank you, that helped lot. :3
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