Answer:
7 days
Step-by-step explanation:
The watch was set 20 seconds behind already, at the start. The watch has lost 7 more seconds at the rate of 1 second per day.
3 1/8 means 8 x 3 + 1 = 25/8
4/5 x 25/8
= 4x25/5x 8
= 100/40
= 5/2
<u>$173,954.01</u>
Finding compound interest :
first one