The ratio of the number of cups of flour to the number of cups of sugar in a mixture is 2: 5. which of the following best describes the amount of flour and sugar in the mixture?
a. for every 2 cups of flour, there are 7 cups of sugar.
b. for every 7 cups of flour, there are 5 cups of sugar.
c. for every 5 cups of flour, there are 2 cups of sugar.
d. for every 2 cups of flour, there are 5 cups of sugar.