Arecipe for twelve cupcakes uses two cups of flour. angela wants to bake forty cupcakes for the bake sale. which proportion below should she use to find the amount of flour needed?

12:2=40:x

              6.66 cups of flour

Step-by-step explanation:

12 cupcakes2 cups flour

40 cupcakesX cups of flour

use proportion :

 12:2=40:x

12x=80

X=6.66 cups

i'm assuming it's looking for the missing length, which should be 4cm

hope this !