Classify the angle as acute, right, obtuse or straight

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

In the figure below, segment ac is congruent to segment ab: which statement is used to prove that angle abd is congruent to angle acd? a.)triangle acd is similar to triangle abd. b.)triangle acd is congruent to triangle abd. c.)segment a.d. is congruent to segment ac. d.)segment a.d. is congruent to segment dc.

Find 1/8 of 12. express your answer in simplest form.