Use a graph to you answer these questions.
a. what is the modulus of the complex number 2 − 2i?
b. what is the argument of the number 2 − 2i?
c. write the complex number in polar form.
d. arguments can be measured in radians. expres your answer to part (c) using radians.
e. explain why the polar and rectangular forms of a complex number represent the same number.

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?