Answer: 2
4/2= 2
So your answer is 2
Https://www.wyzant.com/resources/answers/46749/the_sum_of_radical_18_and_radical_72_is
7y-3°=3y+13°
7y-3y= 13°+3°
4y= 16°
y=4°
Substitute y
7(4)-3°= 25°
3(4)+13=25°
180°-25°-25°=130°
2(2x+3)°+130°=180°
4x+136°=180°
4x=44°
x=11°
I believe the answer would be 4/6 which would simplify to 2/3
The answer is definitely c