Added casher_job to practice

Author: Citrus716

2_intermediate/chapter11/solutions/cashier_job.py

@@ -0,0 +1,18 @@
+# Write a function that will take the number of pennies, nickels, dimes,
+# quarters, and discount(i.e. 15 for 15% discount). Return the total amount of
+# money after discount. 
+#
+# Print what is returned by the function after it is run with 97 pennies,
+# 13 nickels, 18 dimes, 54 quarters, and 20% discount.
+# Print what is returned by the function after it is run with 32 pennies,
+# 19 nickels, 22 dimes, 71 quarters, and 51% discount.
+
+def calc_total(penny, nickel, dime, quarter, discount):
+    before_discount = 0.01*penny + 0.05*nickel + 0.1*dime + 0.25*quarter
+    discount_multiplier = 1 - discount*0.01
+
+    return round(before_discount* discount_multiplier, 2)
+
+print(calc_total(97, 13, 18, 54, 20))
+
+print(calc_total(32, 19, 22, 71, 51))