I need a minimum of 1 page

I need help with a Resume Writing question. All explanations and answers will be used to help me learn.

Written Recommendation for a colleague who has applied for a job (minimum of one page in length). Pretend a friend or colleague has applied to a real company and has asked you for a letter of recommendation. Criteria: clearly addresses audience and purpose and use of appropriate tone. The letter must be in business letter format and addressed to a real company. Make sure you include contact information, phone number or email address. Electronic submission required. Do not email it to me.