Atriangle has side with the lengths 8x + 6, 5x -5 and -6x + 12. what is the perimeter of the triangle?

if you could tell how you did this, do. i would like to know so i don't keep making this

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1