Answer:
The expression is not factorable with rational numbers...
Step-by-step explanation:
Answer:
Option A :- 
Step-by-step explanation:

Simplify the expression

Transform the Expression

Calculate

Answer:
70%
Step-by-step explanation:
Percentage is out of 100
35/50 change denominator
multiply both numerator and denominator by 2
70/100= 70%
Using Pythagorean theorem





Answer: always
Step-by-step explanation: