Please help i will give brainliest pls don’t answer if you don’t know

Write an algebraic expression for the word expression the quotient of c and 8

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?

Ineed with number 6 , explain how to get 1978