What is the undefined term that mathematically uses parallel lines

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5