Final answer:
To show the amount of flour and buttermilk Kevin uses in his biscuit recipe, we can create a diagram with the quantities of flour and buttermilk written next to their labels.
Step-by-step explanation:
To show the amount of flour and buttermilk Kevin uses, we can create a diagram. On the left side of the diagram, we can write 'Flour (c)' and on the right side, we can write 'Buttermilk (c)'. Then, we can write the quantities of flour and buttermilk Kevin uses. Since he uses 4 cups of flour, we can write '4' next to 'Flour (c)'. Similarly, since he uses 3 cups of buttermilk, we can write '3' next to 'Buttermilk (c)'.