They are most likely 90 degrees, due to the sharing of a common side and a common vertex. They really could be anything though. If given more details, I will give a better answer. I still would like Brainliest, however.
5) w/8 =11+5 → w/8=16
w=16÷8=2
6)a/-2 -6=1
a/-2=7
a=7×-2=-14
7)k/2=22
k=44
(x - 4)(x + 3) = x^2 + 3x - 4x - 12 = x^2 - x - 12
The sum of the internal angles in a simple pentagon is 540°.
105 + 135 + 92 + 87 = 419
540 - 419 = 121
The angle is 121
B or C would be most logical in this case of study.
