Question 65673
250 = cost/month for copier
3.50/500 = cost of paper per sheet
.025 / sheet = cost to run the machine
x = the number of copies that can be made before budget is exceeded
{{{250 + ((3.5 / 500) + .025)*x <= 950}}}
{{{250 + (.007 + .025)x <= 950}}}
{{{250 + .032x <= 950}}}
{{{.032x <= 700}}}
{{{x <= 21875}}}
So, if 21875 sheets are printed the budget is used up.
The expenses besides the $250 rental are {{{.032x}}}
and  {{{.032x <= 700}}}