Acircle is centered at (−8, −13) and has a radius of 13. what is the equation of the circle? enter the equation in the box using lower case variables x and y.

Me with this one question, and i'll upvote the brainliest answer

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d