I'm unsure of the question but this expression can be written as:
16 + x < 32.
This can be simplified to:
x < 16
Answer:

Step-by-step explanation:

Apply sum of cubes formula: 


This is a bit of a guess, but I think probably a) +4 and also a) -215
Y=-x+5
-x+5=1/3x-3
-x+8=1/3x
8=4/3x
6=x
y=-6+5
y=-1
C.
2.17720 × 10^2 is the answer