Question

in a party decorations total r balloons were used.there were b blue balloons, twice as many green ballons, and the rest of balloons were yellow. how many yellow ballons were used? write in algebraic expression

Answer 1

Answer:

This fragile material was papyrus, and it later came to be called paper.

9. About eighteen hundred years ago, a Chinese inventor made paper from bark and rags.

10. Chinese books were soon written on a paper; unfortunately, the knowledge of paper-making did not reach Europe for a thousand years.