Which polynomial represents the sum below?

(2x6 + 3x2 + 9) + (3x2 + x + 8)

a. 5x8 + 3x4 + x + 17
b. 5x8 + 3x2 + x + 17
c. 2x6 + 6x3 + 17
d. 2x6 + 6x2 + x + 17

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

Are triangles the congruent? write the congruency statement. what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?