Elevators have safety limits for how much weight they can lift. the elevator at the terrace hotel can hold up to 2,100 pounds. write an equation or inequality that represents the allowable weight on the elevator at the terrace hotel. graph the solution to the equation or inequality you wrote on the number line. explain your answer.

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?