One side of triangle is 5x-2 another side is 6x+7 and t is the length of third side then what is true about length of t

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.