I think -8 but i’m not sure tho
Answer:
22.36
Step-by-step explanation:
20*.86=17.2
12 *.43= 5.16
Answer:

Step-by-step explanation:
Because vertical angles are always equal, we want to solve
.
We can add 10 to both sides to get
.
We can subtract
from both sides to get
.
Lastly, we divide both sides by 20 to get
.
So,
and we're done!
The check is left as an exercise to the reader.
Answer:
the answer is 5
Step-by-step explanation: