How many weeks' holiday a year are there? http://www.janisclaxton.com/phd-dissertation-thesis/ strangers engineering math problems novel compound Jenelle Evans finally has some good news to share. The troubled 'Teen Mom 2' star is engaged to her to her on-again, off-again boyfriend Gary Head, she announced. The 20-year-old posted a photo of her engagement ring on Twitter, writing: 'I'm the luckiest girl in the world to have Gary Head in my life.'