Answer:
B) Kathy starts each week with 108 phones to fix.
Explanation:
P is the number of phones left for Kathy to fix
d is the number of days she worked.
This means every day Kathy works, she fixes 23 phone per day or 23 phones fixed a day. The total amount of phones is 108 which is what she has to fix every week.
The only option that makes sense is:
B) Kathy starts each week with 108 phones to fix.