Rectangle A is 10 times as long as rectangle B. If rectangle A is 80 units long, select all the ways to find the length of rectangle B. *

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!