Which equation represents a line perpendicular to the line shown on the graph? y=5/2x-8
y=-5/2x+6
y=2/5x-1
y=-2/5x+9

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

What ratio is proportional to 18/21

Out of the 150 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking?