Help I don’t understand

The measure of an angle is 117°. what is the measure of a supplementary angle?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

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