Bernice estimated that 69% of 242 is 168. is her estimate reasonable?
no, because her calculation should be 60% of 250.
no, because her calculation should be 70% of 250.
yes, because her calculation should be 60% of 240.
yes, because her calculation should be 70% of 240.

What is the solution of the systems of equations? y=2/3x+3 x=-2

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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?