A.12 because i had same question
<span />
Answer:

Step-by-step explanation:
Add the 2 equations together, then solve for x.

Now that we know the value of x, we can easily find y by substitution.

These are the answers
- Kan Academy Advance
The answer is 2^27 because the 2 is supposed to stay the same and 9*3=27.
Hope this helped☺☺
14. -6m²-2m+1
15. 14x-24
16.3b²
17.14p+7
do you need the steps?
Answer:
Perimeter of Compound Shapes: Composite Rectangles. Perimeter is the total distance around the outside of a shape. horizontal. sides must be the same length in total as the one longer red side.
Step-by-step explanation:Also not sure...Hope this kinda helps...