He earns $12 + $8 = $<<12+8=20>>20 after selling the French fries and Poutine every day.
So, he earns $20 x 7 = $<<20*7=140>>140 every week.
And the total amount he pays for the taxes is $140 x 0.10= $<<140*0.10=14>>14.
So, his income after paying the weekly taxes is $140 - $14 = $<<140-14=126>>126.
Lucius spends $10 x 7 = $<<10*7=70>>70 for the ingredients every week.
Therefore, his total income every week after buying all the ingredients and paying the taxes is $126 - $70 = $<<126-70=56>>56.
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