Question 1074718
The revenue achieved by selling x graphing calculators is figured to be The cost of each calculator is How many graphing calculators must be sold to make a profit (revenue - cost) of at least $46.20?
--------------------------------------------------------------------------


Revenue figured to be, what?
Cost of each calculator, is what?


No values given in description. 
Some variables then:
r, revenue
t, cost of each calculator


{{{r-tx=46.2}}}


{{{-tx=46.2-r}}}


{{{x=(r-46.2)/t}}}
Value for x needs values for r and t.