Amelia and Carmen read every night. Amelia reads the same number of pages each night. So does Carmen. The table shows the number of pages that each girl has left to read after 2, 4, 5, and 7 nights of reading their books.Pages Left to ReadNightsAmeliaCarmen222522441751605150128710064Whose book has the greater number of pages?

Amelia’s pages left decrease from 225 to 175 over 2 nights, so she reads 25 pages each night. Her book had 225 + 2(25) = 275 pages. Carmen’s pages left decrease from 224 to 160 over 2 nights, so she reads 32 pages each night; her book had 224 + 2(32) = 288 pages. Carmen’s book has 288 − 275 = 13 more pages, so the correct choice is “Carmen’s book has 13 more pages.”

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