Answer:
-5,-8
Step-by-step explanation:
The one on the left is b and the one on the right is -1.
4.8, I hope this helps you, I answered this earlier. :)
Answer:
x = 8, y = 
Step-by-step explanation:

Both 8 and x sides are congruent so they're equal.
Add 64 + 64.
Square root 128

Final answers: x = 8, y = 
Answer:
Hey there,
(It would be good to note that i just learned how to simplify/solve algebraic expretions)
P=21+2w
P/21=2w
then we flip it
2w=p/21 which could also be
w=2(p/21) i think