Janice examines the given triangle and estimates that the longest side has a length of 25 units―if it is a right triangle. how does her estimate compare to the actual length? it is exactly correct. it is under by approximately 0.6 units. it is over by approximately 0.6 units. it is over by 13 units.

All per-unit concepts rely on ratios, meaning, to provide a type of measurement

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

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?