Solving
we get 
Step-by-step explanation:
We need to solve the expression:

Solving the expression
Adding 10 on both sides:

Multiplying 3 on both sides

So, Solving
we get 
Keywords: Solving Inequality
Learn more about solving inequality at:
#learnwithBrainly
Answer:
5
Step-by-step explanation:
It's an equilateral triangle
The answer might be B or C. If I’m not mistaken.