1/3b-1/3
factor out 1/3
1/3(b-1)
hope this helps
Answer:
99
Step-by-step explanation:
That quadrilateral equals to 360. So i had to add the numbers which equal 261. Then i did 360-261=99.
The answer is Angle Y equals 138.
angle y= 180 -42 which gives u 138
72+k is equal to 180. So if you set up a equation if looks like:
72+k=180
Subtract 72 from both sides
K=108°
Your answer is 108°
