Question

I did the math but I got the wrong answer so

Answer 1

18

Explanation:

4:2 is comparing two numbers, called a ratio. We can also write it like a fraction, 4/2.

4/2

= 4/2(9/9)

= 36/18

Multiplying by 9/9 doesn't change the value, only the way the ratio is written because 9/9 is just one.