A recipe calls for 17 oz of flour for every 9 oz of milk. Let x be the amount of milk use. Let y be the amount of flour used. Express the relationship with an equation. Is the relationship between x and y proportional? If you use 20 oz of the milk, how much flour should you use? Express the relationship with an equation: -

Is the relationship between x and y proportional?

You should use
oz of flour.