The ratios 9:18, 12:24, 15:30, 18:36, and 21:42 form a pattern of equivalent ratios. What is another ratio in the pattern? Please help.

3 : 6

Step-by-step explanation:

in all the ratios, the first number is multiplied by 2 to get the second number

ex. 9 × 8 = 18 and 15 × 2 = 30

so you can use any two numbers that follow this pattern

my answer : 3 × 2 = 6 so 3 : 6 works in this pattern

-9

step-by-step explanation:

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13