Jayna wrote this expression to describe the number of pages she needs to read each day to finish her book. which situation describes what p and 7 mean? a. jayna does not know how many pages she needs to read. she know she has already read for 7 days. b. jayna does not know how many pages she needs to read. she knows that she has 7 days to finish her book. c. jayna does not know how many days she has to finish reading. she knows she has to read 7 more pages. d. jayna does not know how many pages she has already read. she knows she has to read 7 more.