Answer: w=2r
Explanation:
so let say the amount of water is y instead of w and the cup of rice is x instead of r.
so if we were to create a table we use the numbers given
x y
1 2 so as the cup of rice increase by 1 cup the amount of water increase
2 4 by two.
3 6 so we know the slope is 2/1 so the equation is w=2r