Which of the following is another way to express the difference between -5 and 8?

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

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