Answer:
-18gh-24g
Step-by-step explanation:
Answer:

Option D is the correct option.
Step-by-step explanation:

When there is a ( + ) in front of an expression in parentheses , there is no need to change the sign.
That means, the expression remains the same.
Just remove the unnecessary parentheses
⇒
Collect like terms and simplify
⇒
⇒
Hope I helped!
Best regards!!
Answer:
4. x=14.1 mi 6.x=8r3 km
Step-by-step explanation:
Answer: 11, 45, 45, 54, 520