1.) You are correct.
2.) If ∠KQO = 58° and ∠AMI corresponds to it, then this means
.
Substitute for x. ⇒ 
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Checking your work: 
3.) To solve this problem, try to think of triangle ΔQPK. All triangle angles have a sum of 180°. We already have 58. ∠HKQ is an exterior angle with a measure of 113°, so ∠PKQ is supplementary to it. 180 - 113 is 67. Now that we have two angle measures, the sum is 125, meaning that ∠KPQ is 55°. Because ∠MPL corresponds to it, this means it has the same measure of 55°.
4.) ∠KQO and ∠QOD are alternate interior angles, since they share the same transversal. If ∠KQO = 58°, then ∠QOD is also 58°.
5.) Angle ∠MPL is supplementary to ∠LPO. 180 - 55 = 125, so ∠LPO is 125°.
It's B, I'm doing my online school assignment and this was the correct answer.
Answer: 
Step-by-step explanation:
Given
The Sum of the seven interior angles of an octagon is 
for a Polygon, the sum of the interior angles is given by 
for octagon, n=8
The Sum of interior angles is 
Suppose the eighth angle be 

The
angle is 
Then answer is 12 pt equals 6 qt