Answer:
A and C
Step-by-step explanation:
Calculate the concentrations for each mixture.
Mixture A:
(4 teaspoons salt) / (2 cups water) = 2 teaspoons/cup
(0.25 cup sugar) / (2 cups water) = 0.125 cup/cup
Mixture B:
(3 teaspoons salt) / (1.5 cups water) = 2 teaspoons/cup
(0.2 cup sugar) / (1.5 cups water) = 0.133 cup/cup
Mixture C:
(2 teaspoons salt) / (1 cups water) = 2 teaspoons/cup
(0.125 cup sugar) / (1 cups water) = 0.125 cup/cup
Mixtures A and C have the same concentration.
