diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..184c4eb
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,11 @@
+{
+    "python.testing.unittestArgs": [
+        "-v",
+        "-s",
+        ".",
+        "-p",
+        "test_*.py"
+    ],
+    "python.testing.pytestEnabled": false,
+    "python.testing.unittestEnabled": true
+}
\ No newline at end of file
diff --git a/__pycache__/analytics.cpython-312.pyc b/__pycache__/analytics.cpython-312.pyc
new file mode 100644
index 0000000..cc6b214
Binary files /dev/null and b/__pycache__/analytics.cpython-312.pyc differ
diff --git a/__pycache__/test_analytics.cpython-312.pyc b/__pycache__/test_analytics.cpython-312.pyc
new file mode 100644
index 0000000..592ebbf
Binary files /dev/null and b/__pycache__/test_analytics.cpython-312.pyc differ
diff --git a/analytics.py b/analytics.py
index 8acadc8..5603621 100644
--- a/analytics.py
+++ b/analytics.py
@@ -16,9 +16,17 @@ def filter_sales_above_threshold(sales: list, threshold: int):
     - Return empty list if no values qualify
     - Use a loop or list comprehension
     """
-    # TODO: Write your code here
-    pass
-
+#     # TODO: Write your code here
+#     pass
+    list=[]
+    for i in list:
+       if i>threshold:
+          return i
+       else:
+          return list
+# print(filter_sales_above_threshold(([100, 250, 75, 300], 150)))
+       
+       
 
 def count_product_codes(codes: list, prefix: str):
     """
@@ -34,6 +42,13 @@ def count_product_codes(codes: list, prefix: str):
     """
     # TODO: Write your code here
     pass
+    count = 0
+    for code in codes:
+        if code.startswith(prefix):
+            count += 1
+    return count
+ 
+      
 
 
 def calculate_moving_average(numbers: list, window_size: int):
@@ -50,9 +65,12 @@ def calculate_moving_average(numbers: list, window_size: int):
     - Return the average as a float rounded to 2 decimal places
     - Return 0.0 for empty list
     """
-    # TODO: Write your code here
-    pass
-
+   #  # TODO: Write your code here
+   #  pass
+    total=sum(numbers)
+    result=total/window_size
+    return result
+# print(calculate_moving_average([10, 20, 30, 40, 50], 3))
 
 # ==========================================
 # SECTION B: DICTIONARY OPERATIONS
diff --git a/practise.py b/practise.py
new file mode 100644
index 0000000..9f1cc95
--- /dev/null
+++ b/practise.py
@@ -0,0 +1,77 @@
+# # def filter_sales_above_threshold(sales: list, threshold: int):
+# #     """
+# #     QUESTION 1
+# #     ----------------------------------------
+# #     Given a list of sales amounts (integers), return a NEW list containing 
+# #     only values above the threshold.
+    
+# #     Example: filter_sales_above_threshold([100, 250, 75, 300], 150) → [250, 300]
+    
+# #     Logic:
+# #     - Do NOT modify the original list
+# #     - Return empty list if no values qualify
+# #     - Use a loop or list comprehension
+# #     """
+# #     # TODO: Write your code here
+# #     pass
+    
+# #     list=[]
+# #     for i in list:
+# #        if i>threshold:
+# #           return i
+# #        else:
+# #           return list
+# # print(filter_sales_above_threshold([100, 250, 75, 300], 150))
+
+
+# # def count_product_codes(codes: list, prefix: str):
+# #     """
+# #     QUESTION 2
+# #     ----------------------------------------
+# #     Given a list of product codes (strings) and a prefix (string),
+# #     count how many codes START with the given prefix (case-sensitive).
+    
+# #     Example: count_product_codes(["PROD-001", "PROD-002", "SERV-001"], "PROD") → 2
+    
+# #     Logic:
+# #     - Return 0 if no matches found
+# #     """
+# #    #  # TODO: Write your code here
+# #    #  pass
+   
+  
+# # prefix=0  
+# # count=(["PROD-001", "PROD-002", "SERV-001"], "PROD")
+# # count_prefix=count[1] 
+# # for i in count:
+# #    prefix=prefix+1
+# # print(prefix)
+
+#     count = 0
+#     for code in codes:
+#         if code.startswith(prefix):
+#             count += 1
+#     return count
+
+
+
+def calculate_moving_average(numbers: list, window_size: int):
+    """
+    QUESTION 3
+    ----------------------------------------
+    Calculate the average of the LAST window_size elements in the list.
+    
+    Example: calculate_moving_average([10, 20, 30, 40, 50], 3) → 40.0
+    (average of last 3: 30, 40, 50)
+    
+    Logic:
+    - If the list has fewer elements than window_size, use all available elements
+    - Return the average as a float rounded to 2 decimal places
+    - Return 0.0 for empty list
+    """
+   #  # TODO: Write your code here
+   #  pass
+    total=sum(numbers)
+    result=total/window_size
+    return result
+print(calculate_moving_average([10, 20, 30, 40, 50], 3))
\ No newline at end of file