How much are these coins worth

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.

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

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?