14)
2(-3)² => 2(-3)(-3) => 2*9 = > 18
27+18-11 => 27 + 7 = > 34.
16)

17)

The answer is D Log4(8)
Because as seen in my solving you are seeing that when we subtract we can divide.I gave you the final answer of your equation.
Hope I help
Answer:A
Step-by-step explanation:trust me brother