H is the circumcenter, or point of concurrency, of the perpendicular bisectors of ΔACE. Which statements must be true regarding the diagram?

- you need to multiply the recipe by 2.5. you determine it by dividing 30 by 12.

- yeast: 1/4 x 2.5 = 5/8
you need 5/8 ounces of yeast

- milk: 1/3 x 2.5 = 5/6
you need 5/6 cups of powdered yeast

- butter: 6 x 2.5 = 15
you need 15 tablespoons of butter

- flour: 3 1/2 x 2.5 = 8.75
you need 8.75 cups of bread flour