Practice

Questions

Pick a topic and practice with clear explanations.

SAT

Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P = 108 – 23d, where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of the value 108 in this equation?