Write in mathematical symbol.(2pts each)
1. The number of cm in 200mm

2. The weekly salary of a worker if he works 8 hours a day at x per hour .

3. The Area of a rectangle whose length is 25 cm and its width is b cm

4. The Perimeter of an equilateral triangle whose side is 17cm

5. The number hours left in a day less the time of y sleep​