Jose is standing 10 feet east of a mail-box when he begins walking directly east of the mailbox at a constant speed of 6 feet per second. A. How far east is Jose from the mail-box 5 seconds after he started walking?B. Write a formula that expresses Jose's distance from the mailbox (in feet),in terms of the number of seconds t since he started walking. C. As Jose walks away from the mail-box, is his distance from the mail-box proportional to the time elapsed since he started walking away from the mailbox?