USE PATTERNS Joe and Alisha are reading novels for book reports. Joe records the number of pages he has remaining to read after each day in the table below. Alisha records the number of pages she has remaining each day on the graph at the right. Joe Days 0 Pages Remaining 585 1 2 520 455 3 4 5 390 325 260 a. Describe the arithmetic sequence that models the number of pages remaining for each student. b. What is a, for each sequence? Interpret its meaning in the context of the problem. Pages Remaining 500 400 300 200 100 0 Alisha 123456789x Days c. Write an equation for the sequence that can be used to model the pages remaining for each student. Then write each equation in terms of x and y where x is the number of days since each student started reading and y is the number of pages remaining.

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