Please Hurry. 3 Geometry Problems. I have Test Tomorrow. Hurry Please

Hi I am in a hurry. I am in 9th Grade Geometry Honors and need help with 3 problems. Please hurry. I have a test tomorrow. I have quickly drew the probs 2 and 3 in paint, (sorry for lack of qualilty, i'm trying to study!)

1. The Measures of two angles of a triangle are in the ratio 2:3. If the third angle is 4 degrees larger than the larger of the other two angles, find the measures of an exterior angle at the third vertex.

2.

http://img.photobucket.com/albums/v2...e/378601b8.jpg

3.

http://img.photobucket.com/albums/v2...e/37bfdd40.jpg

Thanks.