The answer would be x-16=31
Use the distance formula
And just plug in your numbers and solve
Answer:
a polygon has 3 or more sides
For option a, y = 3(4) - 1 = 12 - 1 = 11 [not correct]
For option b, y = 3(2) - 1 = 6 - 1 = 5 [correct]
Therefore option b is a solution to the given equation.