B. triangle ABC is isosceles. The angles add up 180 degrees.
It's b the number multiplied by 10 must be less than 10
The answer is 100 bc u got to put it into a proportion
I would start at making it more easy by asking my dad or mom for help
Answer:
r= -1.8
Step-by-step explanation:
Distribute
-3-18r=14-7
Combine like terms
-3-18r=7
add 3 to both sides
-18r=10
divide by -18
r=-1.8
