Answer:

Step-by-step explanation:
To evaluate :

Solution:
Two negatives multiply to become a positive.
Thus, we can remove parenthesis by reversing the signs of the fraction by multiplying the negative outside.
⇒ 
Since the denominators are same for both fractions, so we simply add the numerators.
⇒ 
⇒
(Answer)
Answer:
False
Step-by-step explanation:
20, 25, and 30 no hagas un triángulo rectángulo
Answer:
7. im only in middle school but i think you have to take 496 and list its factors, then once you find the right pair, check to see if the difference is 238.
IM TRYING PLEASE DONT YELL AT ME HDBHNSJDGD