The functions f and g are defined as follows.
I need help :/ 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.

Two lines parallel to the same plane are parallel to eachother

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?