What is the equation of the circle shown in the graph?
(x - 3)2 + y2 = 4
(x + 3)2 + y2 = 2
x2 + (y + 3)2 = 4
x2 + (y - 3)2 = 2

One positive number is 9 more than twice another. if their product is 95, find the numbers

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?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens