Algebra 1 help please :) help g

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

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)