8x-6x-25=-35 what does x equal

Ou have a 20-ounce bottle of juice. you pour out 14 of the bottle to share with a friend. if you pour out 3 ounces for yourself, what fraction of the 20 ounces will be left in the bottle? clear check 35 25 12 1320

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Can someone tell me if this is perpendicular? !