a chemical comapany makes two brands of antifreeze . the first brand is 70% pure antifreeze and the second is 95% pure antifreeze. In order to obtain 30 gallons of a mixture that contains 80% pure antifreeze how many gallons of each brand pf antifreeze must be uses

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Step-by-step expla

i have no answer for this maybe o 7 units

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: