Answer:
1. True
2. False
3. False
4. True
Step-by-step explanation:

-

=x
You must find a common denominator(bottom)

×

=


-

=

Your answer is x=
Answer:
9s^2 + 17g - 12
Explanation:
(basically combine like terms)
the s^2 are like terms, so that would get you 18s^2 - 9s^2 = 9s^2
then the g’s are like terms,
15g + 2g = 17g
then the -12 is all on its own
if you put it all together:
9s^2 + 17g - 12
the formula for perimeter is l+l+w+w
So 9+9+6+6= 30 meters of fence