I think it could be 13,17, and 15.
If I am wrong then I am sorry
It would be 9/4. To find 1/3 of something you have to multiply it by 3. 9/4 should be considered as a division expression. Hope this helped!
In slope intercept form this is equal to y=3/2x+8. If you want it in decimal form it would be y=1.5x+8.
The radius of the circle is 3