Anyone, ! write the following as algebraic expressions: in a party decorations total r balloons were used. there were b blue balloons, twice as many green balloons, and the rest of balloons were yellow. how many yellow balloons were used?

The number of yellow balloons is (r -3b/2)

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