Which ratios form a proportion?
a. 4/12 , 6/8
b. 16/12 , 3/4
c. 3/2 , 15/14
d. 10/16 , 5/8

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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?

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept