Expain plese and txsss

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.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7