The area of each square in the figures below is 81 square units.
select the perimeter of each figure.

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

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