What is the highest common factor 12 and 30 what does factor mean

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Me with this one question, and i'll upvote the brainliest answer

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?