hi. it is me again. please help me with another problem. :D if you can, please, explain how to get the answer. thank you so much..

this is the figure:

Attachment 24594
and these are the questions:

Line segment TO is the bisector of <GTA and <GTA is a right <; m<GTO = (5x)deg, and m<OTA = (3x+10)deg

1. What is x?

2. What is m<GTO? if m<ATG = (4x-12)deg and m<GTO = 24

3. What is x?

4. What is m<ATG if m<ATG = (5x+18)deg, m<ATO = (2x+12)deg

5. Find <GTO

an explanation on how to get will help me so much.. thank you..