Sherry spent 90 minutes completing her homework last night. of these minutes 1/3 of them were spent on math . how many minutes did sherry spent on her math homework?

30 minutes

Step-by-step explanation:

In this context, "of" means "times". 1/3 of 90 minutes means ...

... (1/3) × 90 minutes = 90/3 minutes = 30 minutes

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:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!