diff --git a/Python_Exercises.py b/Python_Exercises.py
index d7e6135..d8db3c2 100644
--- a/Python_Exercises.py
+++ b/Python_Exercises.py
@@ -7,8 +7,10 @@
 def power(a,b):
     
     # ** What is 7 to the power of 4?**
-    
-    return None
+  
+    return a**b
+out= power(7,4)
+print(out)
 
 
 
@@ -20,7 +22,9 @@ def split_str(s):
 #     
 # **into a list. **
 
-    return None
+    return s.split()
+output= split_str("Hi there Sam!")
+print(output)
 
 
 def format(planet,diameter):
@@ -35,7 +39,7 @@ def format(planet,diameter):
 #     The diameter of Earth is 12742 kilometers.
 
     return None
-
+print("The diameter of {planet} is {diameter} kilometers." .format(planet='Earth', diameter='12742'))
 
 
 def indexing(lst):
@@ -43,8 +47,11 @@ def indexing(lst):
 # ** Given this nested list, use indexing to grab the word "hello" **
 
 #lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7]
+ return None
+lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7]
+lst[3][1][2]
 
-    return None
+   
 
 
 def dictionary(d):
@@ -55,6 +62,8 @@ def dictionary(d):
 
 
     return None
+d = {'k1':[1,2,3,{'tricky':['oh','man','inception',{'target':[1,2,3,'hello']}]}]}
+d['k1'][3]['tricky'][3]['target'][3]
 
 
 def subjective():
@@ -63,7 +72,7 @@ def subjective():
 # Tuple is _______
 
     return None
-
+immutable