What is the measurement shown in the image?

Relevant Information:

• The image displays mathematical expressions and numerical values.
• One expression reads '9 мин - 24 с', indicating a subtraction involving minutes and seconds.
• Another expression is '9 м² - 15 дм²', involving square meters and square decimeters.
• A number '77' is prominently displayed in a pink rectangle.
• There's also '3 т - 9 ц', suggesting a subtraction involving tons and centners.
• The word 'Тетрадь' (Notebook) is visible on a green cover.
• A red sticker with '18' and the word 'Листов' (Sheets) is also present.

Analysis: The image contains snippets of mathematical problems and a notebook cover. The problems involve calculations with units of time (minutes and seconds), area (square meters and square decimeters), and mass (tons and centners). The number '77' could be a page number, a score, or part of a problem. The notebook details suggest it's for schoolwork.

Answer: The image shows mathematical exercises involving time, area, and mass units, along with a notebook cover. Specific calculations include '9 min - 24 s', '9 m² - 15 dm²', and '3 t - 9 c'. The number '77' is also visible.