Answer:
Right option is (D).
ΔABC and ΔDBE are similar triangles by side angle side similarity postulate.
Step-by-step explanation:
We have given,
Two triangles ΔABC and ΔDBE such as :
This relation will contribute to side side similarity.
Also,
∠B = ∠B , This will contribute as an angle similarity .
So combining above two relations,
and ∠B = ∠B
we can conclude that the triangle ΔABC and ΔDBE are similar triangles by side angle side similarity postulate.
Hence the right option is (C)
you have to simplify it
then isolate the variable
then you will get x=6
<u>So with more than one pair of parentheses, you must start from the inside and make your way outside.</u>
So firstly, distribute -3 to (2x + 4):
![6+2[-8-6x-12]+10x](https://tex.z-dn.net/?f=6%2B2%5B-8-6x-12%5D%2B10x)
Next, combine like terms:
![6+2[-6x-20]+10x](https://tex.z-dn.net/?f=6%2B2%5B-6x-20%5D%2B10x)
Next, distribute 2 to [-6x - 20]:
Lastly, combine like terms and <u>your final answer will be 
</u>
#11
Each roll is 9' long,
length of each roll = 9' * (12"/foot) = 108"
Each ribbon piece = 15", so number of ribbons per roll
=108/15=7 with 3" left over, which is assumed not possible to be joined with other pieces.
Therefore, with 5 rolls, there are 7*5=35 pieces of ribbon, with 5 pieces or 3" left over.
