Make a mapping diagram for the relation {(–2, –6), (0, 3), (1, –5), (5, 0)} i don't understand this.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

Which function has the domain x> -11