A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she dropped 62 feet. How many feet had she been below sea level, if she was 157.9 feet below sea level after she dropped?

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!