In this line of ,the ratio of red circles to blue circles is 1: 3 , how many more red circles would need to be added to make the ratio of red to blue 3: 1

8 more red circles because if you have 9 red circles and 3 blue ones the ratio would be 9:3 and if you simplify that down to 3:1 that’s the answer. So you would need to add 8 more red circles

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.

1.3 million hoops i believe