5p-3r=1
8p+6r=4

which ordered pair (p, r) is a solution to the given system of linear equations? a . (-1,-2) b. (-2,-1) c. (2/9,1/3) d. (1/2,2/9)

your answer would be 12

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)