Determine if the relationship in the table is proportional X-3,12,5,7,9 Y-12,20,21,36

No

Step-by-step explanation:

The numbers skip around here and there. The increase isn't uniform

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: