Help with geometry! practice test. please! ?

Question

i have to answer this practice test but math is just not my thing and it confuses the heck out of me. =[

so here is the link http://i127.photobucket.com/albums/p153/nanipics1/emamgeo012.jpg

i only need help with 2, 3, 6 and 7. thank you in advance

Answer 1

2. 5:3

3. the angles are 40-40-100

6. a) dg=ef

7. b) r/t=u/s