So my assignment is about foundations in algebra, and the question is is "Draw a graph for each inequality" and I'm not sure what that means

Solve for x i'll try to attach the files bc it's not letting me for some reason

What is the volume of the sphere shown below with a radius of 3?

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?