God im h o r n y right now

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Can someone me out here and the tell me the greatest common factor

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?