Gemma has 24 balls out of 24 balls 12 are yellow for pink and the rest are red what is the ratio of the number of red balls to the number of balls that are either yellow or pink

12:12

Step-by-step explanation: 24-12 = 12 red balls therefore the ratio would be 12:12.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents