Please hurry this is 7th grade hon

Regular price 75$ discount 25%sale price?

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?

Find the solution(s) to x^2-14+49=0