She says 35 because number 7 in line says 31, so 31+4=35...
I hope this helped you!
Answer:
The other angle is 190-7x.
Step-by-step explanation:
Angles in a triangle add up to 180 degrees.
Let A be the third angle.
A + (3x-20) + (4x+10) = 180
A = 180 - (3x - 20) - (4x + 10) = 190 - 7x
Answer: -75
Step-by-step explanation:
The answer is the first answer choice
