Louis spent 12 hours last week practicing guitar if 1/4 of the time

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.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

2.5 milligrams is equivalent to how many grams