PLEASE HELP!
WILL MARK BRAINLIEST ):

Polygon interior angle sums = (n – 2)180, where n = number of sides.

Add all given angles and subtract from Sum of all angles of given the polygon.

a) 6 sides, sum of interior angles = 720

   720 - 595 = 125

b) 5 sides, sum of interior angles = 540

   540 - 478 = 62

c) 4 sides, sum of interior angles = 360

    360 - 302 = 58

d) 7 sides, sum of interior angles = 900

   900 - 770 = 130

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)