Colton is reading a book, and each day he reads the same number of pages. The function P(n)=175−25n represents the number of pages, P Colton has left to read after n days, where n has a value of 0 to 7
. a. What are the domain and range of P?
And what are domain and range?

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?