Sarah took the advertising department from her company on a round trip to meet with a client. including sarah a total of 7 people took the trip. she was able to purchase coach tickets for $120 and first class tickets for $1020.she used her total budget for airfare for the trip, which was $2640.how many first class tickets did she buy? how many coach tickets did she buy?

step-by-step explanation:

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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)