What is mucous . define nd functions of it .

Mucus refers to the viscous, slippery substance that is secreted by the glands. It is the free slime of the mucous membranes. It consists of the secretion of the glands, along with various inorganic salts, desquamated cells and leucocytes. The main function of mucus is to protect and lubricate surfaces.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11

correct answer for apex users would be /opportunities for growth/