Wrong,
You added when you were supposed to divide.
24/30 = 0.8
Answer:
using V=w x h x l=11·12·3=396
Step-by-step explanation:
396 cm^3
Answer: Hi
Step-by-step explanation:
Can you take a better pic, then I help
Answer: 
Not a factor because there is a remainder.
Step-by-step explanation:
Let's use synthetic division to solve this..
-1 ║ 2 | 4 | -2 | -8
║ | -2| -2 | 4
║ 2 | 2| -4 | -4

PS: if anyone knows a better way to do a synthetic division chart please let me know.
Answer:
x=12
Step-by-step explanation:
9x-14=2(3x+11)
9x-14=6x+22
9x-6x=22+14
3x=36
x=36/3=12