Answer:
3x-13+2x+4=116( the sum of two interior angle is epual to the sum of exterior angle )
5x =116-9
5x=107
x=21.4 degree
then
angle a= 3*21.4-13
a=51.2degree
angle b=2*21.4+2
b =44.8degree
Step-by-step explanation:
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2y/9=5/9+4/9
2y/9=9/9
2y/9=1
2y=9
y=9/2
First, you have to get rid of the square root and in order to do that you get rid of the radical by going to the power of 2 or "squared"