Answer: 60
Explanation:
Functions
20 divided by 12 = 1.66666667
30 divided by 18 = 1.66666667
45 divided by 27 = 1.66666667
you solve it by dividing the Output and the Input
output divided by input = the relationship
the relationship could be times, minus, plus, or divided by.
Input, Relationship, Output
Hope this helped :D