Question 157519
 I need help with this problem 
Solve the problem: Nikki is fishing from a bank 29 feet above water level. In this location, the fish tend to feed at 42 feet below the surface. How long must Nikki's fish line be to reach the fish?
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The first 29 ft will reach the surface of the water.  Then 42 more feet to get to where the fish are, so it's 29+42 = 71 feet.