The perpendicular to parallels theorem proves

a) alternate interior angles are congruent.

b) congruent angles are equal

c) two lines are perpendicular

d) two lines are parallel

Which expression is equivalent to −16y+13 ? −16(−y+13) 16(−y+2) −16(y+2) 16(−y+13)

Me because some of question i don’t understand

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! ❤