Which ones are correct?? help please

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u