N/4=6/8 n*8=4* equals what

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?