Can two different numbers have the same absolute value? if yes, give an example. if no, explain why not.

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

If rt is greater than ba, which statement must be true ?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?