The polygons are similar, but not necessarily drawn to scale. Find the value of x. PLEASE HELP ME ASAP PLEASE
( I really need it worked out) help a weeb out please

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.

Simplify the expression. -2/5(10+15m-20n)

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5