This is a system that focuses on helping the landlords and tenants get to have a common platform to interact about the condition of the house and how the payment has to be done. Also helps the landlord alert a customer about the rent payment due dates via an SMS API (Nexmo) Specific Objectives: To analyze the manual system for managing rental houses, outline its flaws and determine the

Factorials A factorial is represented by the sign (!). When we encounter n! (known as 'n factorial') we say that a factorial is the product of all the whole numbers between 1 and n, where n must always be positive. For example 1! = 1 = 1 2! = 2 x 1 = 2 3! = 3 x 2 x 1 = 6 4! = 4 x 3 x 2 x 1 = 24 5! = 5 x 4 x 3 x 2 x 1 = 120 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720 etc... Permutations and Combinations