part a. Just divide the ingredients by 2. so, 2 1/4 cups of flour, 3/8 cups of sugar, 1/2 tablespoon baking soda, 1 egg.
part b. 2 1/4 cups of flour, 3/8 cups of sugar. 1 1/8 cups of flour, 3/16 cups of sugar. 9 cups of flour, 1 1/2 cups of sugar. 18 cups of flour, 3 cups of sugar. 36 cups of flour, 6 cups of sugar. 36 cups of flour, 12 cups of sugar.
part c. That's something you have to do.
d. 6
e and s are things only you can do