Answer:
B
Step-by-step explanation:

Answer:
is equivalent to 
Step-by-step explanation:
Using exponent rules:

Given the expression:

⇒
Apply the exponent rule, we have;

Therefore, the given expression
is equivalent to 
Answer:
Angle LKM is 110
Step-by-step explanation:
Since all the angles in a triangle equal 180, and 60 is one angle you can see its an equilaterial triangle.
so x=60
Then 3(60)-70=110
So LKM=110
Answer:
31/45.
Step-by-step explanation:
Give them common denominators, and then if you have to add them, add them if subtract, then subtract, if multiply, then multiply. And if you have to divide it to make the fraction smaller, then do so.
Answer:
2x^2 + x + 4
Step-by-step explanation:
Use Polynomial division.