Any will do i can’t answer 30-35 i’m confused and i keep getting t wrong

8x - 3 =5(2x + 1)

30) 8x - 3 = 10x + 5  G. Distributive property
31) -2x - 3 = 5 A. Subtraction property
32) -2x = 8B. Addition property
33) x = -4F. Division property

34)
3x^3 -5x^2 - 13x + 3 by x - 3

answer
D. 3x^2 + 4x - 1

35)
(0, 1) and (1, 0)

answer is 
y = |x - 1|

Maybe the answer is 20mm. all i really did was just multiply, which is obvious.