What is the simplified expression for -3(2x- y) + 2y + 2(x+y)2
o 8x+y
o y-4x
0 7x-4x
0-4x-y

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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?

What is the frequency of the sinusoidal graph?