diff --git a/lab bonis.py b/lab bonis.py
new file mode 100644
index 0000000..6ba237a
--- /dev/null
+++ b/lab bonis.py	
@@ -0,0 +1,26 @@
+sentence = "Learning Python is very useful and Python makes programming easier and more enjoyable."
+
+# Define a word that appears in the sentence
+word = "Python"
+
+# Print the length of the sentence
+print("Length of sentence:", len(sentence))
+
+# Print the index of the first occurrence of the word
+print("First occurrence index:", sentence.find(word))
+
+# Print the number of times the word appears
+print("Number of occurrences:", sentence.count(word))
+
+# Print the sentence in all uppercase letters
+print("Uppercase:", sentence.upper())
+
+# Print the sentence in all lowercase letters
+print("Lowercase:", sentence.lower())
+
+# Replace the word with a new word
+new_sentence = sentence.replace(word, "Coding")
+print("Replaced sentence:", new_sentence)
+
+# Print the last character of the sentence
+print("Last character:", sentence[-1])
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diff --git a/lab.py b/lab.py
new file mode 100644
index 0000000..967eeaf
--- /dev/null
+++ b/lab.py
@@ -0,0 +1,17 @@
+price = 2.99        # cost of one item
+quantity = 3        # number of items
+tax_rate = 0.075    # 7.5% tax rate in decimal form
+
+# Calculate subtotal
+subtotal = price * quantity
+
+# Calculate tax
+tax = subtotal * tax_rate
+
+# Calculate total cost
+total = subtotal + tax
+
+# Print results formatted as currency (two decimal places)
+print(f"Subtotal: ${subtotal:.2f}")
+print(f"Tax:      ${tax:.2f}")
+print(f"Total:    ${total:.2f}")
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