Does anybody know how to do this?

Which of the following is correct interpretation of the expression -4+13

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy