Laila wrote the sequence shown 5,8,13,20,29 what explicit expression can be used to find the nth term if the sequence

There is no graph but what i can say is that 1 is the slope and that -2 is the y- intercept

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