Answer:
20 sticks of butter
Explanation:
If you need 2 sticks for each 1/4 cup, we need to find out how many 1/4 cups are in 2.5 cups.
2.5 ÷ .25 =10
So there are 10 quarter cups in 2.5 cups.
Now multiply 2 times 10 to find how many sticks of butter are needed.
2(10)=20
If 2.5 cups of brown sugar are used, the recipe will need 20 sticks of butter.