Does (3/4,radica 7/4) lie on the circumference of the unit circle

Triangles abd and ace are similar right triangles. witch ratio best explains why the slope of ab is the same as the slope of ac?

:)i need to know on which ones are corresponding, alternate interior, alternate exterior, or none of these.

What is being done to the variable in the equation 3 + g = -9? the number 3 is being added to it. the number 3 is being subtracted from it. the number -9 is being added to it. the number -9 is being subtracted from it.