The equation 12d+350=1,010 can be used to determine d, the number of dollars charged per month. Subtracting 350 from both sides of this equation yields 12d=660,and then dividing both sides of the equation by 12 yields d=55. Choice A is incorrect. If d were equal to 25, the first 12 months would cost 350+(12)(25)=650 dollars, not $1,010.Choice B is incorrect. If d were equal to 35, the first 12 months would cost 350+(12)(35)=770 dollars, not $1,010. Choice C is incorrect. If d were equal to 45, the first 12 months would cost 350 + (12)(45) =890 dollars, not $1,010 dollars.