Please help please

What are the sotions to the quadratic equation 9x^2=4

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Which shows the graph of the solution set of 3y – 2x > –18?