Please help me solve for the question mark. Also if possible explain how you got the answer. Thank you in advance.

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33