Hello everyone could anyone help me with this question, I will give 5 stars and a like and brianliest

Od. 130 degrees because if you add them together you get the 130

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

That they are numbers and related to each other.

Answers4.) -1/205.) -1/406.) -55/127.) -3/4