Find the slope and y intercept.

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.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)