Answer:
Measure of BC = 10.
Step-by-step explanation:
This is an isosceles triangle because the 2 base angles are both 50 degrees.
So the 2 sloping sides AB and BC are also equal.
The answer is 4x + 50.
Step by Step: -25+75= 50
You can’t add or subtract a variable with a number.
I think it 4194304 i THINK thats the answer