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.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!