Find x first to answer get brainliest

The parabola opens: y=√x-4 (principal square root) up down right left

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?

Afootball is throw by a quarterback to a receiver