Final answer:
The volume of the classroom is 283 m³, which is also equal to 283,000 L or 283,000,000 mL.
Step-by-step explanation:
Volume is the measure of the amount of space occupied by an object. The standard SI unit of volume is defined by the base unit of length, which is a cubic meter (m³). To make volume more convenient for everyday use, other units are commonly used, such as the liter (L) and the milliliter (mL). One liter is equal to 1000 milliliters or 1 cubic decimeter (dm³) or 1000 cubic centimeters (cm³). Therefore, the classroom's volume of 283 m³ is also equal to 283,000 L or 283,000,000 mL.