Cody and Aria are painting a mural. They decide they want part of the mural to have a purple background. Aria uses 7 tbsp. of blue to 2 tbsp. of red to make her purple paint. Cody is planning to use more and uses 21 tbsp. of blue to 6 tbsp. of red. Are their ratios of purple mixture equivalent to one another's?(1 point)

A. No, Cody’s has more red.
B.No, Aria’s has more blue.
C.Yes, they are equivalent.
D.No, Cody’s has more blue.

The ratio in Cody's mixture is 21 blue to 6 red, which can be simplified to 7 blue to 2 red. This is the same ratio as Aria's mixture, 7 blue to 2 red. Therefore, the ratios of their purple mixtures are equivalent.

The answer is C. Yes, they are equivalent.