Pound is closest to a kilogram
Answer: Choice C.
and Choice E. 
Step-by-step explanation:
Algebraic exponents.
Answer:

Step-by-step explanation:
The expression in the square root should be greater than or equal to zero, because square root of a negative number does not give a real number.

Answer:
x>0
Sorry to say this but im speechless when I read the question
no hard feelings
keep studying
Step-by-step explanation: