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Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1