please give me a correct solution, take ur time... and thanks...

Core Homework (HW) #4 (writing a sales letter): In this exercise, students are requested to write a sales letter to an appropriate audience on one the topic that the question specifies. The letter should have all required parts [Letterhead or Return or Sender's Address, Date Line, Inside Address (Recipient's), Salutation, Body paragraph 1 (Attention), Body paragraph 2 (Appeal), Body paragraph 3 (Application), Body paragraph 4 (Action), Complimentary Close, and Signature Block]. The letter may follow any letter block format (Full block, Modified Block, or Semi-Block) You have recently opened a public library in Beirut and decided to write a sales letter to one of the renowned schools in your area, asking the school's administration to encourage parents to have their kids enjoy the reading experience there, with special discounts for monthly or yearly subscription... REMEMBER: Apply the 4 A's of sales letter