Answer:
w = 12
Step-by-step explanation:
1/6w + 7 = 9
-7 -7
---------------------
1/6w = 2
--------- -------
1/6 1/6
-----------------------
w = 12
Answer:99 days
Step-by-step explanation:
Given
If one start with one square unit it takes 100 days
i.e. At second day it is 2 unit
third day 
at n th day 
at 100 day
square unit
If we start with 2 square units it would take
for n days


Answer:
+2 ft
Step-by-step explanation:
He descends -12 feet (negative descend is an ascend) so he ascends 12 feet
-14 + 12 = -2 so he needs to travel 2ft