i just switched over to edgeunity and i need to start from the beginning can someone that finished the first semester help me with everything

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?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.