Which graph represents a function

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

There is 240 red cars and there is 400 blue cars because 240/3=80 and 80*5=400

The volume is 56.8 triangular the