Is this table proportional or non-proportional?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Select the correct answer what is the 10th term of the geometric sequence 3,6, 12, 24,48 a. 512 b. 3,072 c. 768 d. 1,536