Ineed with the following math problem.

It is Line 2 and 3 because line 2 written in y-intercept is y=-5x-30. y=-5x-8 has the same slope as that so they are parallel

Bis the right answer

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's